content stringlengths 86 994k | meta stringlengths 288 619 |
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[pypy-commit] extradoc extradoc: remove sections about numpy and prolog for space reasons
cfbolz noreply at buildbot.pypy.org
Mon Jun 20 10:13:52 CEST 2011
Author: Carl Friedrich Bolz <cfbolz at gmx.de>
Branch: extradoc
Changeset: r3748:cec026d1ed94
Date: 2011-06-20 10:10 +0200
Log: remove sections about numpy and p... | {"url":"https://mail.python.org/pipermail/pypy-commit/2011-June/051374.html","timestamp":"2014-04-16T22:54:08Z","content_type":null,"content_length":"4683","record_id":"<urn:uuid:f447c03c-822f-426b-81d7-a0f7cb218555>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00120-ip-10-147-4-33.e... |
Math Forum - Problems Library - Algebra, Quadratics: Quadratic Formula
This page:
quadratic equations
completing the square
About Levels
of Difficulty
use of variables
one variable equations
functions & relations
linear equations
linear data
linear systems
linear inequalities
exponents & radicals
rational equations
exp... | {"url":"http://mathforum.org/library/problems/sets/alg_quadratics_quadformula.html","timestamp":"2014-04-16T20:00:31Z","content_type":null,"content_length":"12502","record_id":"<urn:uuid:dd62f911-0df5-4ad0-85b1-b5acc04a80dc>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00339-ip-10-1... |
The Biology Project: BioMath
Quantitative Biology Problem Sets
Acid/Base Equilibria
Enzyme Kinetics: Michaelis-Menten Equation
Enzyme Kinetics: Lineweaver-Burke Plot
Hill Equation
DNA Melting Temperature
Bragg's E... | {"url":"http://www.biology.arizona.edu/biomath/BioMath.html","timestamp":"2014-04-17T21:26:38Z","content_type":null,"content_length":"12338","record_id":"<urn:uuid:b9e3a9de-76c5-4020-97a9-781df6e2b26c>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00280-ip-10-147-4-33.ec2.internal.wa... |
CJM: Volume 50 (1998)
3 Subgroups of the adjoint group of a radical ring
Amberg, B.; Dickenschied, O.; Sysak, Ya. P.
It is shown that the adjoint group $R^\circ$ of an arbitrary radical ring $R$ has a series with abelian factors and that its finite subgroups are nilpoten... | {"url":"http://cms.math.ca/cjm/v50/","timestamp":"2014-04-19T04:35:25Z","content_type":null,"content_length":"199015","record_id":"<urn:uuid:4e2e33a1-7c02-4c64-8d83-c1dffe387753>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00248-ip-10-147-4-33.ec2.internal.warc.gz"} |
The DO Loop
My previous post described how to use the "missing response trick" to score a regression model. As I said in that article, there are other ways to score a regression model. This article describes
using the SCORE procedure, a SCORE statement, the relatively new PLM procedure, and the CODE statement.
The foll... | {"url":"http://blogs.sas.com/content/iml/page/3/","timestamp":"2014-04-19T17:01:45Z","content_type":null,"content_length":"132283","record_id":"<urn:uuid:61dca19e-aa89-4133-926d-46320ef017d6>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00546-ip-10-147-4-33.ec2.internal.warc.gz"} |
Rotating to position... [Archive] - OpenGL Discussion and Help Forums
02-04-2004, 03:11 AM
I have a triangle with normal vector (nx,ny,nz),
i want to rotate this triangle such that
the normal vector be aligned with (0,1,0).
i.e., after the rotation, all the vertices
of the triangle will have the same
y coordinate.
how... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-159499.html","timestamp":"2014-04-16T13:46:48Z","content_type":null,"content_length":"4580","record_id":"<urn:uuid:6d662a8d-8824-42dd-a91d-d195607fa1c0>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00508-ip-10-147-4... |
Vector problem involving orthogonal
March 5th 2011, 05:41 PM
Vector problem involving orthogonal
Hi, I'm struggling with this problem:
For $\vec{u} =$[-4, 1, 10]^T and $\vec{v} =$ [−12, −6, 8]^T find the vectors $\vec{u1}$ and $\vec{u2}$ such that:
(i) $\vec{u1}$ is parallel to $\vec{v}$
(ii) $\vec{u2}$... | {"url":"http://mathhelpforum.com/advanced-algebra/173580-vector-problem-involving-orthogonal-print.html","timestamp":"2014-04-21T04:44:28Z","content_type":null,"content_length":"12336","record_id":"<urn:uuid:ab2673ae-8fe9-4fc5-9cda-f14789228939>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-2014041... |
The Bohr's radius
yeah...base on my result, I would say that Bohr was right at least at the radius of the probability density in a Hydrogen atom, but for higher state of n, using the same approach, the Bohr radius
failed miserably: adding the repulsion energy of 2 electrons to the Bohr's energy level, I got positive an... | {"url":"http://www.physicsforums.com/showthread.php?p=2199389","timestamp":"2014-04-17T04:42:26Z","content_type":null,"content_length":"36477","record_id":"<urn:uuid:1cd11e7a-bb66-467f-9648-adb70ad33a0c>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00357-ip-10-147-4-33.ec2.internal.... |
Colorado Interstate Gas Company
First Revised Volume No. 1
Contents / Previous / Next / Main Tariff Index
Effective Date: 06/01/2010, Docket: RP10-689-000, Status: Effective
Second Revised Sheet No. 228A.01 Second Revised Sheet No. 228A.01
Superseding: First Revised Sheet No. 228A.01
1.2 Continued
(f) Shippers must hav... | {"url":"http://www.ferc.gov/industries/gas/gen-info/fastr/htmlall/003979_000100/003979_000100_000417.htm","timestamp":"2014-04-20T11:20:04Z","content_type":null,"content_length":"7106","record_id":"<urn:uuid:46fcb864-28c3-427e-9c96-3e4f21a034e4>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-2014041... |
S.C.: Hysterical B-trees
, 1989
"... This paper is a study of persistence in data structures. Ordinary data structures are ephemeral in the sense that a change to the structure destroys the old version, leaving only the new version
available for use. In contrast, a persistent structure allows access to any version, old... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=957948","timestamp":"2014-04-19T17:55:29Z","content_type":null,"content_length":"22917","record_id":"<urn:uuid:026af63c-cf49-4a29-bbbc-979ccb57164e>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00441-ip-10-147-4-33.ec2.internal.war... |
Integral [Calc 2]
November 19th 2008, 11:43 PM #1
Aug 2008
Integral [Calc 2]
There was a question on a previous exam and I can't seem to get the right answer.
$\int\frac{2dx}{x^3 + x}$
My initial method was to use Integration by Parts, but I can't seem to massage it correctly.
$u = \frac{2}{x}$; $du... | {"url":"http://mathhelpforum.com/calculus/60620-integral-calc-2-a.html","timestamp":"2014-04-19T01:11:47Z","content_type":null,"content_length":"42290","record_id":"<urn:uuid:2dc9913c-f2a7-45b3-9b97-538cfaba824a>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00397-ip-10-147-4-33.ec2.i... |
An approximate converse of discrete uncertainty principle
up vote 4 down vote favorite
Let $f:\mathbb{Z}_n \rightarrow \{0, 1\}$ and let's normalize the Fourier transform $\hat{f}$ so that $\|\hat{f}\|_2 = \|f\|_2$, i.e. $$\hat{f}(\xi) = \frac{1}{\sqrt{n}}\sum_{x \in \mathbb{Z}_n}{f(x)
e^{-2\pi i x \xi/n}}$$ Also let $... | {"url":"http://mathoverflow.net/questions/83208/an-approximate-converse-of-discrete-uncertainty-principle?answertab=oldest","timestamp":"2014-04-20T06:29:51Z","content_type":null,"content_length":"57598","record_id":"<urn:uuid:99340463-43cc-4ec6-b990-6addfe138e20>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/w... |
Relatively Prime Quadratic Integers
December 8th 2010, 10:44 AM #1
Jun 2010
United States
Hello Math Help Forum,
I saw the following problem on another forum but the responses were all over the place and I was hoping if someone could give some clarity. The problem states:
Assume $32 = \alpha\beta$ f... | {"url":"http://mathhelpforum.com/number-theory/165709-relatively-prime-quadratic-integers.html","timestamp":"2014-04-17T07:22:53Z","content_type":null,"content_length":"34895","record_id":"<urn:uuid:b4d0fec4-25c0-476a-8fa9-62ea38c60298>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-0... |
Nonlinear systems
There is a long standing debate if financial systems are truly random or contain some structure. From the study of non-linear dynamical systems and chaos one finds it is possible that even perfectly
deterministic systems can appear to be random. Those systems tend to be predictable on short time scale... | {"url":"http://quantsignals.wordpress.com/2012/06/22/nonlinear-systems/","timestamp":"2014-04-21T09:36:11Z","content_type":null,"content_length":"54995","record_id":"<urn:uuid:878f5e54-d932-4843-afc5-c4c3c341e87e>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00388-ip-10-147-4-33.ec2... |
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Posts by
Total # Posts: 512
At car (1140-kg)traveling at 76.04 m/s and truck (12600-kg)traveling 6.88 m/s have a head-on collision and then stick together. What is their final common velocity (m/s)? (assume the car is going in
the positive direction) What is the cars' change in momentum in the above ...
And yes, that ... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=Casey&page=3","timestamp":"2014-04-18T10:44:13Z","content_type":null,"content_length":"28122","record_id":"<urn:uuid:00e83f4c-aa5c-43cc-a271-1cf21c5c5f22>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00663-ip-10-147-4-33.e... |
Quick Question
10-03-2012 #1
Registered User
Join Date
Oct 2012
Quick Question
This is for a class. I am NOT asking for someone to do this for me. I just can't find out an issue and would appreciate it if anyone could point out its cause.
This is the program.
int main(void)
//Variable declaration
... | {"url":"http://cboard.cprogramming.com/c-programming/151103-quick-question.html","timestamp":"2014-04-17T12:32:54Z","content_type":null,"content_length":"76693","record_id":"<urn:uuid:5eb9f3ec-4fce-4e1c-9243-3a3300f12fe9>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00129-ip-10-147-... |
Problem solving
February 16th 2008, 10:54 PM #1
Junior Member
Feb 2008
Problem solving
Please some one help me with my daughters maths problem.
If a square is divided into 16 squares, how many different ways are there to get from the top left hand corner to the bottom right hand corner if only moving right ... | {"url":"http://mathhelpforum.com/math-topics/28441-problem-solving.html","timestamp":"2014-04-19T22:18:11Z","content_type":null,"content_length":"37243","record_id":"<urn:uuid:c9ba9be7-d572-41fa-8e85-c3f209d6d40a>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00512-ip-10-147-4-33.ec2... |
The Philosophy of Mathematics
March 30th 2012, 05:14 AM #1
Mar 2012
Well hello everyone! This is a new section devoted to philosophical questions related to mathematics.
The philosophy of mathematics is an important and interesting subject. As history has demonstrated, every great leap in mathematics is a p... | {"url":"http://mathhelpforum.com/math-philosophy/196593-philosophy-mathematics.html","timestamp":"2014-04-20T10:10:40Z","content_type":null,"content_length":"30448","record_id":"<urn:uuid:ad67c505-349a-4eff-89b3-c694ce7e5deb>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00105-ip-10-1... |
Maximum and minimum value
October 4th 2007, 04:27 PM
Maximum and minimum value
Show that the function f(x) = 1/squareroot(x) has neither the maximum value or the minimum value on (1,2).
maximum: lim f(x) as x-> 0 = infinity which is not in (1,2).
minimum: lim f(x) as x-> infinity = 0 which is not in (1,2).
... | {"url":"http://mathhelpforum.com/calculus/20001-maximum-minimum-value-print.html","timestamp":"2014-04-17T04:30:01Z","content_type":null,"content_length":"4408","record_id":"<urn:uuid:479999e5-91e8-47d6-ae65-b60e757b7ec2>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00086-ip-10-147-... |
Conway, WA Math Tutor
Find a Conway, WA Math Tutor
...I am also happy to help younger children struggling with science find a love for science! I am able to tutor statistics, algebra, geometry, and basic math for young children through high
school level classes, as well. I received a 4.0 GPA during my undergraduate... | {"url":"http://www.purplemath.com/conway_wa_math_tutors.php","timestamp":"2014-04-18T13:38:59Z","content_type":null,"content_length":"23729","record_id":"<urn:uuid:c27edc31-f8a4-41b3-beab-c2536a387617>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00531-ip-10-147-4-33.ec2.internal.wa... |
Physics Forums - View Single Post - Electrical potential problems
I am sometimes confused by electric potential sometimes in question. I know its is the work done or potential energy of a particle at specific place,and electric potential is work done per charge.
You've said electric potential twice. So I think you mea... | {"url":"http://www.physicsforums.com/showpost.php?p=3789015&postcount=7","timestamp":"2014-04-17T18:25:04Z","content_type":null,"content_length":"10998","record_id":"<urn:uuid:eb139cb8-72e7-4040-a117-4bf13c221d5a>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00584-ip-10-147-4-33.ec2... |
Got Homework?
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its been so liong i forgot please help real simple
• one yea... | {"url":"http://openstudy.com/updates/5084236ce4b041b051b974dc","timestamp":"2014-04-19T19:57:05Z","content_type":null,"content_length":"53727","record_id":"<urn:uuid:b3826515-a6b7-468e-89e0-36ee6cbd886c>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00415-ip-10-147-4-33.ec2.internal.w... |
Bala Cynwyd Algebra Tutor
Find a Bala Cynwyd Algebra Tutor
...I have high expectations and do expect to see a lot of hard work, productivity, progress and a regular evaluation of student skills in desired areas of focus, helping students be unashamed to
work on weakness in the direction of change and improvement. C... | {"url":"http://www.purplemath.com/Bala_Cynwyd_Algebra_tutors.php","timestamp":"2014-04-16T19:35:50Z","content_type":null,"content_length":"23828","record_id":"<urn:uuid:7b50a289-62ac-4633-b95d-d4cb1f433d7d>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00616-ip-10-147-4-33.ec2.interna... |
Posts by
Posts by Jane
Total # Posts: 1,317
a car travelved a distance of 195 miles in 3 hours 15 minutes what is the unit rate
The acceleration due to gravity on Earth is 9.80 m/s2. If the mass of a dog is 40.0 kg, what is the weight of the dog?
The longer leg of a triangle is one foot less than twice the shorter leg... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=Jane","timestamp":"2014-04-19T10:38:56Z","content_type":null,"content_length":"30222","record_id":"<urn:uuid:e3809d06-dcb0-497d-a02f-312cdc5d19ec>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00627-ip-10-147-4-33.ec2.inter... |
Multiplicity of Zeros and Graphs Polynomials
With this factored form, you can change the values of the leading coefficient a and the 5 zeros z1, z2, z3, z4 and z5. You can explore the local behavior of the graphs of these polynomials near zeros
with multiplicity greater than 1.
Once you finish this interactive tutorial... | {"url":"http://www.analyzemath.com/polynomials/polynomials.htm","timestamp":"2014-04-16T13:15:33Z","content_type":null,"content_length":"9636","record_id":"<urn:uuid:7c90fc2c-8774-43b7-8498-6c8a63321ada>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00378-ip-10-147-4-33.ec2.internal.... |
Logarithmic functions help.
March 17th 2008, 02:27 PM #1
Logarithmic functions help.
Im taking Business calc so it's not nearly as hard as normal calc, and I have a few questions on a take home quiz I have. If any one could help me it would be greatly appreciated.
Find the derivative, do not need to simplify
... | {"url":"http://mathhelpforum.com/calculus/31243-logarithmic-functions-help.html","timestamp":"2014-04-18T03:18:58Z","content_type":null,"content_length":"33447","record_id":"<urn:uuid:d93d7cb0-8169-4f15-ae05-601b47e9bdff>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00526-ip-10-147-... |
University of
5-7 May 2014
Jacob Lurie
Professor Lurie will give three lectures over the course of his week in Eugene (Mond... | {"url":"http://math.uoregon.edu/seminars/moursund/","timestamp":"2014-04-19T19:37:17Z","content_type":null,"content_length":"15966","record_id":"<urn:uuid:2a4c7cc0-6a6a-4447-b893-e2a5bc8d1f4e>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00070-ip-10-147-4-33.ec2.internal.warc.gz"} |
Posts about Non-linearity on Possible Insight
Archive for the ‘Non-linearity’ Category
Via a post at the always terrific Watts Up with That, a pre publication version of this paper examines the non-linear coupling dynamics of the climate. Its hypothesis is based on the mathematics of
synchronized chaos (sorry, no good ... | {"url":"http://possibleinsight.com/category/non-linearity/","timestamp":"2014-04-17T09:35:19Z","content_type":null,"content_length":"30500","record_id":"<urn:uuid:b8680182-5023-42df-bcc1-4644e221898c>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00369-ip-10-147-4-33.ec2.internal.war... |
ANNOUNCEMENT FOR 1996
Advanced Course on Theory of Elasticity
Date: 29 October-8 November 1996
Location: TICMI (Tbilisi, Telavi)
David Gordeziani (University of Tbilisi, Georgia)
Summary: Reduction of three-dimensional problems of the theory of elasticity to the two-and one-dimensional mathematical models by Vekua's re... | {"url":"http://www.emis.de/journals/TICMI/ann96.htm","timestamp":"2014-04-20T18:49:56Z","content_type":null,"content_length":"4300","record_id":"<urn:uuid:fa31540b-5207-420d-9e66-dbc29730b843>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00627-ip-10-147-4-33.ec2.internal.warc.gz"} |
Journey Through Genius: The Great Theorems of Mathematics Summary
This Study Guide consists of approximately 32 pages of chapter summaries, quotes, character analysis, themes, and more - everything you need to sharpen your knowledge of Journey Through Genius.
This section contains 333 words ... | {"url":"http://www.bookrags.com/studyguide-journey-through-genius/chapanal007.html","timestamp":"2014-04-23T07:21:19Z","content_type":null,"content_length":"44116","record_id":"<urn:uuid:102ad24c-f553-47ff-9bbe-80df907bc8f2>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00271-ip-10-1... |
problem involving triangle and profit
July 19th 2011, 11:21 AM #1
Jul 2011
problem involving triangle and profit
The question reads:
Due to previous tunneling experience, the firm estimates a cost of $18,000 per meter for boring through this type of rock and constructing the tunnel according to required spe... | {"url":"http://mathhelpforum.com/trigonometry/184831-problem-involving-triangle-profit.html","timestamp":"2014-04-19T01:58:15Z","content_type":null,"content_length":"42388","record_id":"<urn:uuid:8c0dc7c8-2051-463d-9f4b-dc20ebf3d8c9>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-0001... |
The Matching Problem
\(\newcommand{\P}{\mathbb{P}}\) \(\newcommand{\E}{\mathbb{E}}\) \(\newcommand{\R}{\mathbb{R}}\) \(\newcommand{\N}{\mathbb{N}}\) \(\newcommand{\bs}{\boldsymbol}\) \(\newcommand{\var}{\text{var}}\) \(\
newcommand{\cov}{\text{cov}}\) \(\newcommand{\cor}{\text{cor}}\)
1. 5
5. The Matching Problem
Defi... | {"url":"http://www.math.uah.edu/stat/urn/Matching.html","timestamp":"2014-04-20T03:10:23Z","content_type":null,"content_length":"26532","record_id":"<urn:uuid:6b2c6311-8ff4-4889-98de-9beae17837c8>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00468-ip-10-147-4-33.ec2.internal.warc.gz... |
Paul Dawkins
Math 2413 – Calculus & Analytic Geometry I
Class Notes
You can access copies of my class notes at http://tutorial.math.lamar.edu. The notes are viewable on the web and can be downloaded. The downloads are broken up into section, ... | {"url":"http://www.math.lamar.edu/faculty/dawkins/2413/2413.aspx?ID=74","timestamp":"2014-04-16T07:43:00Z","content_type":null,"content_length":"42594","record_id":"<urn:uuid:2bd3a50d-d606-439e-9d55-8171049af1c5>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00658-ip-10-147-4-33.ec2.i... |
January-March, 2003
Volume 5, Issue 1
Issue is dedicated to 50th anniversary of Professor Anatoly Georgievich Kusraev
Anatoly Georgievich Kusraev is a representative of the scientific school of Academician Leonid Vital'evich Kantorovich, an outstanding Soviet mathematician and a Nobel prize winner in economics. His
mai... | {"url":"http://www.maths.soton.ac.uk/EMIS/journals/VMJ/eng/2003_1.html","timestamp":"2014-04-17T15:51:45Z","content_type":null,"content_length":"10527","record_id":"<urn:uuid:d6e57d7e-48fe-42fc-961d-4f5a890b0b93>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00484-ip-10-147-4-33.ec2.i... |
IJ Plugins: k-means Clustering
k-means Clustering plugin performs pixel-based segmentation of multi-band images. Each pixel in the input image is assigned to one of the clusters. Values in the output image produced by the plugin
represent cluster number to which original pixel was assigned.
An input image stack can be ... | {"url":"http://ij-plugins.sourceforge.net/plugins/segmentation/k-means.html","timestamp":"2014-04-20T20:55:01Z","content_type":null,"content_length":"18240","record_id":"<urn:uuid:b3936737-0f63-4950-859d-caac14516740>","cc-path":"CC-MAIN-2014-15/segments/1397609539230.18/warc/CC-MAIN-20140416005219-00422-ip-10-147-4-33... |
Wolfram Demonstrations Project
Generating 3D Figures with a Given Symmetry Group
A symmetry of a figure is a transformation, such as a rotation, reflection, inversion, etc., that repositions the figure to be indistinguishable from the original. For example, rotating a circle
about its center is a symmetry of the circle... | {"url":"http://demonstrations.wolfram.com/Generating3DFiguresWithAGivenSymmetryGroup/","timestamp":"2014-04-16T16:15:51Z","content_type":null,"content_length":"48708","record_id":"<urn:uuid:b109f300-0ad8-499f-a5ad-548a877181ae>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00273-ip-1... |
Cfg To Cnf Examples
Cfg To Cnf Examples PDF
Sponsored High Speed Downloads
Converting CFGs to CNF (Chomsky Normal Form) Richard Cole October 17, 2007 A CNF grammar is a CFG with rules restricted as follows. The right hand side of a rule consists of:
required length, so the CFG is in CNF. Quesiton 7 Convert the followi... | {"url":"http://ebookily.org/pdf/cfg-to-cnf-examples","timestamp":"2014-04-23T15:13:27Z","content_type":null,"content_length":"41169","record_id":"<urn:uuid:c5507b90-9242-497b-b769-580db6009de2>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00023-ip-10-147-4-33.ec2.internal.warc.gz"} |
Elliptic curves, primality proving, and some titanic primes, Journées Arithmétiques
- Math. Comp , 1993
"... The aim of this paper is to describe the theory and implementation of the Elliptic Curve Primality Proving algorithm. ..."
, 1991
"... We explain how the Elliptic Curve Primality Proving algorithm can be impleme... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=954553","timestamp":"2014-04-19T01:51:36Z","content_type":null,"content_length":"18609","record_id":"<urn:uuid:529c216d-f9dc-4959-a6c1-45f8d23d4aec>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00210-ip-10-147-4-33.ec2.internal.warc... |
Recently Active 'schemes' Questions
The first purpose of schemes theory is the geometrical study of solutions of algebraic systems of equations, not only over the real/complex numbers, but also over integer numbers (and more generally
over any commutative ring with 1).It was finalized by Alexandre GROTHENDIECK,... | {"url":"http://mathoverflow.net/questions/tagged/schemes?sort=active&pagesize=15","timestamp":"2014-04-21T09:55:03Z","content_type":null,"content_length":"177150","record_id":"<urn:uuid:a092e738-c44d-4bd5-9b23-461318a20b95>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00187-ip-10-14... |
Marina Dl Rey, CA Math Tutor
Find a Marina Dl Rey, CA Math Tutor
I have 30 years of classroom experience teaching mathematics to youngsters from ages 11 to 18 years of age. My strong points are patience and building confidence. I can tailor my lessons around
your child's homework or upcoming tests and stay synchron... | {"url":"http://www.purplemath.com/marina_dl_rey_ca_math_tutors.php","timestamp":"2014-04-21T05:05:44Z","content_type":null,"content_length":"24157","record_id":"<urn:uuid:9d27be7b-e902-444d-9e9d-984dd85d8d3a>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00348-ip-10-147-4-33.ec2.inte... |
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Geometry Help for @danielamarques Please!
• one year ago
•... | {"url":"http://openstudy.com/updates/4ff89179e4b058f8b76313f0","timestamp":"2014-04-19T20:12:10Z","content_type":null,"content_length":"54353","record_id":"<urn:uuid:0e796c41-81c9-467b-abdb-17e6a816f067>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00393-ip-10-147-4-33.ec2.internal.... |
An efficient algorithm for com
Awi Federgruen
An efficient algorithm for computing optimal (s,S) policies
Coauthor(s): Paul Zipkin.
Adobe Acrobat PDF
This paper presents an algorithm to compute an optimal (s,S) policy under standard assumptions (stationary data, well-behaved one-period costs, discrete demand, full back... | {"url":"http://www0.gsb.columbia.edu/whoswho/more.cfm?uni=af7&pub=4023","timestamp":"2014-04-20T16:22:14Z","content_type":null,"content_length":"4325","record_id":"<urn:uuid:e35d58fd-859f-49b4-bd0b-f809bb158755>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00173-ip-10-147-4-33.ec2.i... |
Method of lines
From Scholarpedia
Method of Lines, Part I: Basic Concepts
The method of lines (MOL) is a general procedure for the solution of time dependent partial differential equations (PDEs). First we discuss the basic concepts, then i... | {"url":"http://www.scholarpedia.org/article/Method_of_lines","timestamp":"2014-04-18T02:58:14Z","content_type":null,"content_length":"85435","record_id":"<urn:uuid:9aef1edf-6f39-4dd1-81d3-d4207ff60963>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00044-ip-10-147-4-33.ec2.internal.wa... |
Simulated annealing
From Encyclopedia of Mathematics
For Algorithm, computational complexity of an). In practice, exact algorithms are used for solving only moderately sized problem instances. This results in the development of heuristic optimization
techniques which provide good quality solutions in a reasonable amoun... | {"url":"http://www.encyclopediaofmath.org/index.php/Simulated_annealing","timestamp":"2014-04-20T18:24:18Z","content_type":null,"content_length":"28651","record_id":"<urn:uuid:70cdb9f1-43b5-449e-b350-b58f01d76f1d>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00439-ip-10-147-4-33.ec2... |
Patent application title: METHOD AND SYSTEM FOR FORMING A PANORAMIC IMAGE OF A SCENE HAVING MINIMAL ASPECT DISTORTION
Sign up to receive free email alerts when patent applications with chosen keywords are published SIGN UP
A panoramic image is generated from a sequence of input frames captured by a camera that translat... | {"url":"http://www.faqs.org/patents/app/20110043604","timestamp":"2014-04-19T21:34:15Z","content_type":null,"content_length":"125659","record_id":"<urn:uuid:54445228-9c62-43a6-b375-080b1dd03e27>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00343-ip-10-147-4-33.ec2.internal.warc.gz"} |
Where does matrix multipication come from?
July 4th 2008, 06:16 AM #1
Jul 2008
Where does matrix multipication come from?
I am trying to get my head around the origin or matrix multiplication.
Is a good description just: "Matrix Multiplication is just solving a system of linear equations. For example a nxm ... | {"url":"http://mathhelpforum.com/advanced-algebra/43020-where-does-matrix-multipication-come.html","timestamp":"2014-04-20T05:11:47Z","content_type":null,"content_length":"37972","record_id":"<urn:uuid:8ed9d3ea-93a4-4439-b5ee-8559b16b987d>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-2014041600521... |
Main OFSolvers
From OpenFOAMWiki
The solvers that are supplied with OpenFOAM. This page is structured according to the directory structure of the solver-sources.
1 Basic CFD codes
2 Combustion
3 Compressible flow
4 Direct numerical simulation (DNS)
5 Electromagnetics
6 Finance
7 Heat transfer
8 Incompressible flow
9 Mo... | {"url":"http://openfoamwiki.net/index.php/Main_OFSolvers","timestamp":"2014-04-21T15:49:04Z","content_type":null,"content_length":"41086","record_id":"<urn:uuid:09113443-5da6-4411-a6c2-e0f9d15a3276>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00438-ip-10-147-4-33.ec2.internal.warc.... |
Determining the Cut-off Frequency of a MEMS Accelerometer
Well, accelerometer is subject to several sources of high frequency noise, including thermal, electrical and mechanical vibrations. I thought of developing a simple first order, single-pole infinite
impulse response LPF, given by,
y(n) = α.y(n-1) + (1-α).x(n), w... | {"url":"http://www.physicsforums.com/showthread.php?p=4257462","timestamp":"2014-04-20T11:27:13Z","content_type":null,"content_length":"39190","record_id":"<urn:uuid:50211072-444e-4ffc-9940-bc89e034bbd3>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00464-ip-10-147-4-33.ec2.internal.... |
Combinatorial Potlatch 2011
The 2011 edition of the Combinatorial Potlatch was yesterday at Seattle University, which I organized along with Nancy Neudauer. David Neel handled all of the local arrangements.
William Stein gave an overview of Sage, with some combinatorial tidbits. There were the usual “oohs” and “aahs”... | {"url":"http://www.beezers.org/blog/bb/2011/11/combinatorial-potlatch-2011/","timestamp":"2014-04-16T10:18:23Z","content_type":null,"content_length":"12179","record_id":"<urn:uuid:927cf76b-135f-4393-84a8-20c371b4ae11>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00315-ip-10-147-4-33... |
Quantum Physics
1105 Submissions
[3] viXra:1105.0043 [pdf] submitted on 31 May 2011
Physics and Religion
Authors: Ir J.A.J. van Leunen
Comments: 2 pages
When deliberating about the fundaments of physics often the existence of a creator and the relation to religion comes up. This article gives the personal opinion of th... | {"url":"http://vixra.org/quant/1105","timestamp":"2014-04-17T01:20:49Z","content_type":null,"content_length":"5716","record_id":"<urn:uuid:01e2029d-fddb-4f19-877f-e70baf62744b>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00239-ip-10-147-4-33.ec2.internal.warc.gz"} |
The DATAPAC library was written by James Filliben of the Statistical Engineering Division. After these routines were incorporated into the Dataplot program, development of DATAPAC stopped. However,
there are some subroutines here that may still be of interest. In particular, there are a number of routines for computi... | {"url":"http://www.nist.gov/itl/sed/datapac.cfm","timestamp":"2014-04-19T14:52:58Z","content_type":null,"content_length":"43383","record_id":"<urn:uuid:d1e94107-f7f6-441e-b5cf-ab3704f988be>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-00118-ip-10-147-4-33.ec2.internal.warc.gz"} |
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how do i evaluate sec(x)tan^2(x)+sec(x)?
• one year ago
• ... | {"url":"http://openstudy.com/updates/5034222ee4b0d8ed9b49e0d7","timestamp":"2014-04-19T19:48:16Z","content_type":null,"content_length":"41740","record_id":"<urn:uuid:a703f65f-1d5b-4188-a314-ddd39223afb6>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00502-ip-10-147-4-33.ec2.internal.w... |
Computing Modular Polynomials
Kristin Lauter and Denis Charles
August 2004
We present a new probabilistic algorithm to compute modular polynomials modulo a prime. Modular polynomials parameterize pairs of isogenous elliptic curves and are useful in many aspects of
computational number theory and cryptography. Our algor... | {"url":"http://research.microsoft.com/apps/pubs/default.aspx?id=70079","timestamp":"2014-04-17T06:59:28Z","content_type":null,"content_length":"11780","record_id":"<urn:uuid:b843dc6d-76ee-49a7-838f-a48c16f39026>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00507-ip-10-147-4-33.ec2.in... |
Lazy Lake, FL Statistics Tutor
Find a Lazy Lake, FL Statistics Tutor
I have been tutoring for over 20 years at the high school level (mainly private tutoring and 6 years at the University level). I am extremely passionate about my students success and will go the
extra mile to ensure their learning. My greatest rew... | {"url":"http://www.purplemath.com/Lazy_Lake_FL_Statistics_tutors.php","timestamp":"2014-04-20T14:04:29Z","content_type":null,"content_length":"24583","record_id":"<urn:uuid:836a0d13-8e02-4d91-bf58-b786a8a6c5ae>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00607-ip-10-147-4-33.ec2.in... |
What does an aggregate demand and supply graph look like at equilibrium with both short and long-run aggregate supply? - Homework Help - eNotes.com
What does an aggregate demand and supply graph look like at equilibrium with both short and long-run aggregate supply?
An aggregate demand (AD) and aggregate supply (AS) gr... | {"url":"http://www.enotes.com/homework-help/what-does-an-aggregate-demand-supply-grpah-look-430153","timestamp":"2014-04-20T03:24:17Z","content_type":null,"content_length":"28063","record_id":"<urn:uuid:9154c26b-5220-419a-9d68-49d54ee1d307>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-201404160052... |
Efficient noise-tolerant learning from statistical queries
Results 1 - 10 of 230
, 1998
"... We consider the problem of using a large unlabeled sample to boost performance of a learning algorithm when only a small set of labeled examples is available. In particular, we consider a
setting in which the description of eac... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=39587","timestamp":"2014-04-18T00:43:46Z","content_type":null,"content_length":"42504","record_id":"<urn:uuid:d0dfe0a5-74b6-4396-8454-e39e0aff9feb>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00039-ip-10-147-4-33.ec2.internal.warc... |
Probably the first question we should ask is not “What can we know?” but “How can we go about knowing anything?” Both the philosophy of knowledge, known as epistemology, and the philosophy of
science, are large subjects, so I’ll only touch on a few main points to describe my views. What I’ll argue here, is that we can ... | {"url":"http://www.davegentile.com/philosophy/knowledge.html","timestamp":"2014-04-20T00:41:06Z","content_type":null,"content_length":"37156","record_id":"<urn:uuid:3794fac5-80d2-41d1-a08d-78f64a2ecec4>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00191-ip-10-147-4-33.ec2.internal.wa... |
Can I use K-means algorithm on a string?
up vote 4 down vote favorite
I am working on a python project where I study RNA structure evolution (represented as a string for example: "(((...)))" where the parenthesis represent basepairs). The point being is that I have an
ideal structure and a population that evolves towar... | {"url":"http://stackoverflow.com/questions/6293637/can-i-use-k-means-algorithm-on-a-string","timestamp":"2014-04-17T05:15:26Z","content_type":null,"content_length":"75414","record_id":"<urn:uuid:279e2da1-3fa4-4738-8ff2-c3d7620ef678>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00029... |
Why doesn't forall (RankNTypes usage) apply by default?
up vote 8 down vote favorite
I am not so familiar with forall, but recently read this question: What does the `forall` keyword in Haskell/GHC do?
In one of the answers is this example:
{-# LANGUAGE RankNTypes #-}
liftTup :: (forall x. x -> f x) -> (a, b) -> (f a... | {"url":"http://stackoverflow.com/questions/10129101/why-doesnt-forall-rankntypes-usage-apply-by-default","timestamp":"2014-04-20T01:47:05Z","content_type":null,"content_length":"80857","record_id":"<urn:uuid:d72663b4-a7e9-451b-9063-df2941b122dd>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423... |
Solving the Cubic with Cardano - The Problem
The Problem
Before we examine the solution to \(x^3=ax^2+b,\) we consider some background on the cubic.
In 1494, Luca Pacioli published his Somma di aritmetica, geometrica, proporzioni e proporzionalità, which collected much of the mathematical knowledge of the time. In his ... | {"url":"http://www.maa.org/publications/periodicals/convergence/solving-the-cubic-with-cardano-the-problem","timestamp":"2014-04-17T08:19:24Z","content_type":null,"content_length":"102790","record_id":"<urn:uuid:4f542575-7ef8-4c7b-8a2e-9e78f7f50ece>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-201... |
Back to Last Page
> <
Full Glossary
Definition of Cointegration: "An (n x 1) vector time series y[t] is said to be cointegrated if each of the series taken individually is ... nonstationary with a unit root, while some linear
combination of the series a'y is stationary ... for some nonzero (n x 1) vector a."
Hamilton u... | {"url":"http://economics.about.com/library/glossary/bldef-cointegration.htm","timestamp":"2014-04-19T01:47:54Z","content_type":null,"content_length":"35168","record_id":"<urn:uuid:adc84a19-fcbc-41ba-8b0b-1955cc389909>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00116-ip-10-147-4-33.... |
1209 Submissions
[1] viXra:1209.0014 [pdf] submitted on 2012-09-05 00:31:28
Dual Numbers
Authors: W. B. Vasantha Kandasamy, Florentin Smarandache
Comments: 159 Pages.
The concept of dual numbers was introduced in 1873 by W.K.Clifford. In this book the authors build higher dimensional dual numbers, interval dual numbers... | {"url":"http://vixra.org/alg/1209","timestamp":"2014-04-20T18:30:12Z","content_type":null,"content_length":"3923","record_id":"<urn:uuid:cb282b7e-c6e2-4f1c-8bc0-01b7492801cf>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00339-ip-10-147-4-33.ec2.internal.warc.gz"} |
What is network design I
Steiner Tree
What is network design I
Steiner Tree
What is network design II
(connected facility location)
What is network design II
(connected facility location)
Is there fair & budget balanced cost-sharing?
Dealing with limited individual utility: should all clients get connected?
From cost s... | {"url":"http://www.ima.umn.edu/talks/workshops/4-7-11.2003/tardos/tardos_files/outline_collapsed.htm","timestamp":"2014-04-19T19:35:10Z","content_type":null,"content_length":"9741","record_id":"<urn:uuid:64d19fb6-72f1-478c-8dad-9b83d79a1f7c>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032... |
Homework Help
Posted by tammy on Saturday, January 6, 2007 at 1:56pm.
1.find the area heigh 5ft width 8 ft
A=H x W
A= 5ft x 8Ft
A= 40ft^2
2.The circular surface of a table has a diameter of 4 ft. What it will cost to have the top refinished if the company charges $5.00 per square foot for the refinishing ? Use 3.14 for... | {"url":"http://www.jiskha.com/display.cgi?id=1168109774","timestamp":"2014-04-17T04:38:38Z","content_type":null,"content_length":"9365","record_id":"<urn:uuid:55e9d598-7f5d-45cf-88b2-2d8da5e6f087>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00332-ip-10-147-4-33.ec2.internal.warc.gz... |
Enjoy Lighting Review/Giveaway
I am a giant candle lover but with having a child I have am limited. I can only light them when she is in bed or on my kitchen table. I love the look of candles burning in my living room. It is
impossible to have them out with a child running around. Thanks to
Enjoy Lighting
I can have th... | {"url":"http://m0mmy-x3.blogspot.com/2011/02/enjoy-lighting-reviewgiveaway.html?showComment=1297082211577","timestamp":"2014-04-19T22:17:15Z","content_type":null,"content_length":"441324","record_id":"<urn:uuid:f1be7f4d-dc02-43b6-95e2-860614512d4c>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-2014... |
HAKMEM -- Figure 1(b).
Figure 1(b). [Item 55] As 1(a), but radix i+1. Large circle is origin. Dashes indicate continuity of curve at confusing places. Dotted curve is with an infinity of ones to the left (big dot = ...1111
= i). The solid and dotted curves are symmetrical about the point marked with a small circle.
Fig... | {"url":"http://www.std.com/obi/hakmem/Figure1b.html","timestamp":"2014-04-21T04:32:06Z","content_type":null,"content_length":"1583","record_id":"<urn:uuid:4685a576-946b-402d-91d9-5ef2d1f6b20e>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00090-ip-10-147-4-33.ec2.internal.warc.gz"} |
SMALL 2013 Projects:
Commutative Algebra:
Advisor: Susan Loepp
Project Description:
Consider the set of polynomials in one variable over the complex numbers. We can define a distance between these polynomials that turns out to be a metric. The Cauchy sequences with respect to this
metric, however, do not all converge... | {"url":"http://math.williams.edu/small/previous-smalls/small-2013-projects/","timestamp":"2014-04-18T18:10:28Z","content_type":null,"content_length":"38957","record_id":"<urn:uuid:219a9d5d-198c-4b01-ad11-af0212d29a7b>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00253-ip-10-147-4-33.... |
Single Structure
Represents a single-precision floating-point number.
Namespace: System Assembly: mscorlib
(in mscorlib.dll)
public struct Single : IComparable, IFormattable,
IConvertible, IComparable<float>, IEquatable<float>
The Single type exposes the following members.
Name ... | {"url":"http://msdn.microsoft.com/en-us/library/system.single.aspx","timestamp":"2014-04-16T19:41:09Z","content_type":null,"content_length":"161371","record_id":"<urn:uuid:9b25c710-d670-4ec0-8800-1a41fe2bdea3>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00205-ip-10-147-4-33.ec2.int... |
Got Homework?
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Here's the question you clicked on:
If the use of the passive sign convention is specified, find t... | {"url":"http://openstudy.com/updates/50a4f480e4b0f1696c13a9cd","timestamp":"2014-04-20T06:06:54Z","content_type":null,"content_length":"54785","record_id":"<urn:uuid:0f01d17e-13b0-474e-bf26-a9e32b48ebaf>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00018-ip-10-147-4-33.ec2.internal.... |
Re: Turbulence models expansion?
Just wondering if the future development would include more turbulence models (like large eddy simulation, detached eddy simulation, etc...) other than the ones we see (k-e, RNG, eddy viscoscity,
mixing length)?
hey max.. we have done a fair amount of R&D on which turb models to offer. ... | {"url":"http://forums.autodesk.com/t5/Simulation-CFD/Turbulence-models-expansion/m-p/3220538","timestamp":"2014-04-16T22:41:06Z","content_type":null,"content_length":"209175","record_id":"<urn:uuid:ce355710-0f29-42b5-8e4c-03bc232c518b>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-004... |
Wolfram Demonstrations Project
Cauchy-Schwarz Inequality for Integrals
The Cauchy–Schwarz inequality for integrals states that for two real integrable functions in an interval . This is an analog of the vector relationship , which is, in fact, highly suggestive of the
inequality expressed in Hilbert space vector notati... | {"url":"http://demonstrations.wolfram.com/CauchySchwarzInequalityForIntegrals/","timestamp":"2014-04-17T03:54:08Z","content_type":null,"content_length":"44453","record_id":"<urn:uuid:b370a588-671d-42ac-ae74-91d31eb2fc52>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00262-ip-10-147-4... |
New View of Statistics: Linear Regression
A New View of Statistics © 2000 Will G Hopkins
Go to: Next · Previous · Contents · Search · Home
Generalizing to a Population:
SIMPLE MODELS AND TESTS continued Linear Regression
Let's use the same example that I used to introduce the concept of statistical models. As you ... | {"url":"http://www.sportsci.org/resource/stats/linreg.html","timestamp":"2014-04-19T23:18:04Z","content_type":null,"content_length":"7833","record_id":"<urn:uuid:71e0fefc-94f9-498e-804d-caafa6af4f7f>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00225-ip-10-147-4-33.ec2.internal.warc... |
Summations in $\tan^2$
up vote 3 down vote favorite
Hey all,
I was just wondering if anyone had come across the following identities, valid for $m\in\mathbb{N}$. I've used Abramowitz and Stegun, Maple, Mathematica etc but can't find them anywhere. I can prove
these, though they happen 'accidentally' from a method which... | {"url":"http://mathoverflow.net/questions/50339/summations-in-tan2","timestamp":"2014-04-20T06:37:56Z","content_type":null,"content_length":"58208","record_id":"<urn:uuid:2683f696-fd3d-4baa-86ef-0e0e075cc0e3>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00524-ip-10-147-4-33.ec2.inte... |
Jacinto City, TX Calculus Tutor
Find a Jacinto City, TX Calculus Tutor
I am currently a CRLA certified level 3. I have been tutoring for close to 5 years now on most math subjects from Pre-Algebra up through Calculus 3. I have done TA jobs where I hold sessions for
groups of students to give them extra practice on ... | {"url":"http://www.purplemath.com/Jacinto_City_TX_Calculus_tutors.php","timestamp":"2014-04-17T04:14:06Z","content_type":null,"content_length":"24437","record_id":"<urn:uuid:aa4353ff-710f-4f55-97f4-12bbe3654d1f>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00242-ip-10-147-4-33.ec2.i... |
centre of a group Z(G)
February 25th 2008, 11:18 AM #1
Junior Member
Aug 2007
centre of a group Z(G)
Hey there, i have a question on the center of a group.
The centre Z(G) of a group G is defined by $Z(G) = g \epsilon G: \forall x \epsilon G, xg = gx$
(i) Show that Z(G) is normal subgroup of G
(ii) ... | {"url":"http://mathhelpforum.com/advanced-algebra/29103-centre-group-z-g.html","timestamp":"2014-04-17T09:40:29Z","content_type":null,"content_length":"79017","record_id":"<urn:uuid:2a205d0b-ff78-4e0b-a686-569c9d3f58fa>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00048-ip-10-147-4-... |
Re: [PATCH] Fix the R6RS exact-integer-sqrt and import into core guile
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Re: [PATCH] Fix the R6RS exact-integer-sqrt and import into core g... | {"url":"http://lists.gnu.org/archive/html/guile-devel/2011-04/msg00106.html","timestamp":"2014-04-17T18:56:59Z","content_type":null,"content_length":"8520","record_id":"<urn:uuid:1968d455-4f8a-4a35-a546-705465146f21>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00609-ip-10-147-4-33.... |
Eliminating x and y
November 14th 2009, 07:17 PM #1
Junior Member
Oct 2009
Hi there I have a problem that I am trying to figure out. It said that by eliminating $x$ and $y$ from the equations $\frac {1}{y}+\frac {1}{y}=1$, $x +y = a$, $\frac {y}{x}=m$ where $a =/0$.
obtain a relation between $m$adn $a$. Giv... | {"url":"http://mathhelpforum.com/pre-calculus/114585-eliminating-x-y.html","timestamp":"2014-04-21T17:05:09Z","content_type":null,"content_length":"48185","record_id":"<urn:uuid:0669501e-787c-46e7-b3d3-369f8a430338>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00172-ip-10-147-4-33.e... |
Why I Got Euler's Identity Tattooed On My Back
The majority of people in my life are uninterested in math, to put it mildly, but that has not prevented them from expressing curiosity about my
Euler's Identity
tattoo. "What's it mean?" they ask. "Why is it so important to you?" These questions are difficult to answer wi... | {"url":"http://higgsblogon.blogspot.com/2010/03/why-i-got-eulers-identity-tattooed-on.html","timestamp":"2014-04-19T17:01:04Z","content_type":null,"content_length":"46051","record_id":"<urn:uuid:a956f32d-9879-44c4-8d94-83a5aef6729c>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00501... |
Can I use K-means algorithm on a string?
up vote 4 down vote favorite
I am working on a python project where I study RNA structure evolution (represented as a string for example: "(((...)))" where the parenthesis represent basepairs). The point being is that I have an
ideal structure and a population that evolves towar... | {"url":"http://stackoverflow.com/questions/6293637/can-i-use-k-means-algorithm-on-a-string","timestamp":"2014-04-17T05:15:26Z","content_type":null,"content_length":"75414","record_id":"<urn:uuid:279e2da1-3fa4-4738-8ff2-c3d7620ef678>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00029-... |
Inverse Parametric Analysis of Seismic Permanent Deformation for Earth-Rockfill Dams Using Artificial Neural Networks
Mathematical Problems in Engineering
Volume 2012 (2012), Article ID 383749, 19 pages
Research Article
Inverse Parametric Analysis of Seismic Permanent Deformation for Earth-Rockfill Dams Using Artificia... | {"url":"http://www.hindawi.com/journals/mpe/2012/383749/","timestamp":"2014-04-19T05:35:00Z","content_type":null,"content_length":"270814","record_id":"<urn:uuid:2b0fc5b8-a558-44ab-abf0-ab0b974a40a2>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00409-ip-10-147-4-33.ec2.internal.warc... |
Good capacitors for opamp power rails? - Page 4 - diyAudio
Originally Posted by
Jerald Graeme does just this in Ch.3 of his book Optimizing Op Amp Performance. It's a high-level book (ie he didn't write it for a knucklehead like me) but I can give the formulae he derived:
For the primary bypass cap Cb = 50/pi*fc
"Here ... | {"url":"http://www.diyaudio.com/forums/headphone-systems/204993-good-capacitors-opamp-power-rails-4.html","timestamp":"2014-04-18T00:32:56Z","content_type":null,"content_length":"80424","record_id":"<urn:uuid:1e2bc368-abce-49bd-b140-3d32bd8f38ad>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-201404... |
Patent application title: METHODS FOR CONFLICT-FREE, COOPERATIVE EXECUTION OF COMPUTATIONAL PRIMITIVES ON MULTIPLE EXECUTION UNITS
Sign up to receive free email alerts when patent applications with chosen keywords are published SIGN UP
A method for executing multiple computational primitives is provided in accordance w... | {"url":"http://www.faqs.org/patents/app/20090198974","timestamp":"2014-04-18T22:31:26Z","content_type":null,"content_length":"54693","record_id":"<urn:uuid:b4b43f53-c434-4f80-b0bf-9181a6677d3d>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00625-ip-10-147-4-33.ec2.internal.warc.gz"} |
New enumeration algorithm for protein structure comparison and classification
• We are sorry, but NCBI web applications do not support your browser and may not function properly.
More information
BMC Genomics. 2013; 14(Suppl 2): S1.
New enumeration algorithm for protein structure comparison and classification
Pro... | {"url":"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3582452/?tool=pubmed","timestamp":"2014-04-20T17:06:16Z","content_type":null,"content_length":"132689","record_id":"<urn:uuid:48aa8bb4-bab8-48fb-ab19-27f39718b6b8>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00023-ip-10-147-4-33.e... |
A.: Chaitin Numbers and Strong Reducibilities
Results 1 - 10 of 11
"... Solovay showed that there are noncomputable reals ff such that H(ff _ n) 6 H(1n) + O(1), where H is prefix-free Kolmogorov complexity. Such H-trivial reals are interesting due to the connection
between algorithmic complexity and effective randomnes... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=1582501","timestamp":"2014-04-16T16:29:53Z","content_type":null,"content_length":"36307","record_id":"<urn:uuid:a620d3ef-a443-419c-a4d8-47e9eee681f8>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00217-ip-10-147-4-33.ec2.internal.wa... |
Summary: COMPLETELY BOUNDED ISOMORPHISMS
Alvaro Arias
Abstract. In this paper the author proves that any two elements from one of the
following classes of operators are completely isomorphic to each other.
1. fVN(Fn) : n 2g. The II1 factors generated by the left regular representation
of the free group on n-generators.... | {"url":"http://www.osti.gov/eprints/topicpages/documents/record/559/1466446.html","timestamp":"2014-04-18T09:08:06Z","content_type":null,"content_length":"8275","record_id":"<urn:uuid:1b4c135e-f250-4651-a2e3-b64c4386ab92>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00139-ip-10-147-... |
Visual Illusions: Google vs Facebook vs Yahoo
The ability to
visualize data
, enabled by the advent of graphical computer tools, has been a great boon to Cap and Perf. The power derives from the way graphical displays provide an efficient impedance match to the visual system
in our brain. The weakness derives from the ... | {"url":"http://perfdynamics.blogspot.com/2011/10/visual-illusions-google-vs-facebook-vs.html","timestamp":"2014-04-19T09:55:51Z","content_type":null,"content_length":"129950","record_id":"<urn:uuid:79db92e0-f42e-4f9b-96e7-60ec8505f441>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00... |
The MD5 message-digest algorithm. IETF RFC 1321
- Advances in Cryptology – EUROCRYPT ’04, Lecture Notes in Computer Science , 2004
"... Abstract. Textbooks tell us that a birthday attack on a hash function h with range size r requires r 1/2 trials (hash computations) to find a collision. But this is quite misleading, b... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=3994171","timestamp":"2014-04-20T14:35:40Z","content_type":null,"content_length":"12826","record_id":"<urn:uuid:9906ed80-d4e6-466e-a847-37b405d7bd00>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00627-ip-10-147-4-33.ec2.internal.wa... |
Calculus with Pre-calculus Review I
Suggestions for Studying for the Final Exam
The final will cover the material typically covered in MCS 121. A good way to study for the final is to find some practice exams on the internet (google "calculus I final), work the problems that are
likely to be on our final, and check you... | {"url":"http://homepages.gac.edu/~kaiser/mcs119/study-guide-final-exam.php","timestamp":"2014-04-17T16:07:13Z","content_type":null,"content_length":"6614","record_id":"<urn:uuid:24f86dd0-c4eb-41df-94cf-96acbab7a424>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00556-ip-10-147-4-33.ec... |
Patent US5140239 - Non-contact tracer control device
This invention relates to a non-contact tracer control device, and more particularly, to a non-contact tracer control device having an improved tracing accuracy.
Recently, non-contact tracer control devices for tracing a profile of a model by using a non-contact dist... | {"url":"http://www.google.ca/patents/US5140239","timestamp":"2014-04-21T02:40:26Z","content_type":null,"content_length":"69828","record_id":"<urn:uuid:39e14311-f99d-496e-afae-41d506b463f9>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00538-ip-10-147-4-33.ec2.internal.warc.gz"} |
Patente US4744939 - Method for correcting for isotope burn-in effects in fission neutron dosimeters
The invention which is the subject of this application was created under a contract with the U.S. Department of Energy.
This invention relates to monitoring neutron fluence by dosimeters and, more particularly, to a meth... | {"url":"http://www.google.es/patents/US4744939?hl=es&dq=flatulence","timestamp":"2014-04-18T05:37:05Z","content_type":null,"content_length":"78213","record_id":"<urn:uuid:4c0c6239-ccba-47b0-96c1-22f0593ace7e>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00139-ip-10-147-4-33.ec2.inte... |
This Article
Bibliographic References
Add to:
Optimal Bucket Allocation Design of k-ary MKH Files for Partial Match Retrieval
January-February 1997 (vol. 9 no. 1)
pp. 148-160
ASCII Text ... | {"url":"http://www.computer.org/csdl/trans/tk/1997/01/k0148-abs.html","timestamp":"2014-04-18T14:12:00Z","content_type":null,"content_length":"59308","record_id":"<urn:uuid:6301ef9e-2c80-4996-8878-02190493f3e4>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00073-ip-10-147-4-33.ec2.in... |
Two Equations (solving for inverses)
Find the inverse equations of the following:
1. $f(x) = 3x + ln(x)$
2. $g(x) = \frac{x+1}{2x+1}$
So the equations become...
1. $x = 3y + ln(y)$
2. $x = \frac{y + 1}{2y + 1}$
Sovle for $y$.
I've played with the algebra a few different ways, especially ... | {"url":"http://mathhelpforum.com/algebra/125963-two-equations-solving-inverses.html","timestamp":"2014-04-16T17:40:51Z","content_type":null,"content_length":"43761","record_id":"<urn:uuid:98cdd8ae-747e-4eae-98f0-60b5e2570d26>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00103-ip-10-... |
the encyclopedic entry of no growth
Exogenous growth model
, also known as the
Neo-classical growth model
Solow growth model
is a term used to sum up the contributions of various authors to a
of long-run
economic growth
within the framework of
neoclassical economics
Development of the model
The Neo-classical model was ... | {"url":"http://www.reference.com/browse/no+growth","timestamp":"2014-04-16T13:22:47Z","content_type":null,"content_length":"99777","record_id":"<urn:uuid:6942b6d2-c5ff-4f16-b50e-2982b14b88ea>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00541-ip-10-147-4-33.ec2.internal.warc.gz"} |
DOCUMENTA MATHEMATICA, Vol. 4 (1999), 109-126
DOCUMENTA MATHEMATICA
, Vol. 4 (1999), 109-126
R. Weikard
On Rational and Periodic Solutions of St... | {"url":"http://www.emis.de/journals/DMJDMV/vol-04/04.html","timestamp":"2014-04-21T14:44:01Z","content_type":null,"content_length":"1723","record_id":"<urn:uuid:ffb8ebb9-c705-4da4-9bf9-3c8757d70adf>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00102-ip-10-147-4-33.ec2.internal.warc.... |
Local tail bounds for functions of independent random variables
Luc Devroye and Gábor Lugosi
Annals of Probability Volume to appear, , 2006.
It is shown that functions defined on $\{0,1,\ldots,r-1\}^n$ satisfying certain conditions of bounded differences that guarantee subgaussian tail behavior also satisfy a much stro... | {"url":"http://eprints.pascal-network.org/archive/00002876/","timestamp":"2014-04-19T17:05:38Z","content_type":null,"content_length":"6845","record_id":"<urn:uuid:1ed07e37-8a79-4f68-985e-380166730dcb>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00509-ip-10-147-4-33.ec2.internal.war... |
The falling body
October 15th 2007, 06:00 PM
The falling body
In the last of my relatively hard problems to figure out, this one applies to a falling body.
ln(mg / mg-cv) = (c/m) t
I need to solve for v(t) and what happens as t-->∞
Thanks, and yes im also new to ln so im a little embarassed if this is r... | {"url":"http://mathhelpforum.com/calculus/20667-falling-body-print.html","timestamp":"2014-04-18T12:31:13Z","content_type":null,"content_length":"13782","record_id":"<urn:uuid:794cb717-181b-409e-8662-c64eca36c7df>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00573-ip-10-147-4-33.ec2... |
Matrix chain multiplication question
Re: Matrix chain multiplication question
Okay I got the definitions of your 3 matrices.
What is M[2,3]?
You want the dimensions of A1 x A2 x A3?
In mathematics, you don't understand things. You just get used to them.
I have the result, but I do not yet know how to get it.
All physic... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=19320","timestamp":"2014-04-19T09:48:49Z","content_type":null,"content_length":"11726","record_id":"<urn:uuid:0a611143-2275-4f4a-b331-ed30400d11a9>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00130-ip-10-147-4-33.ec2.internal.w... |
[Numpy-discussion] Sine Distribution on a 2D Array
Ian Mallett geometrian@gmail....
Sat Jul 24 23:38:36 CDT 2010
So I have a square 2D array, and I want to fill the array with sine values.
The values need to be generated by their coordinates within the array.
The center of the array should be treated as the angle 90 de... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2010-July/051837.html","timestamp":"2014-04-17T18:38:30Z","content_type":null,"content_length":"3560","record_id":"<urn:uuid:7d862980-e873-4412-816a-444d52431d35>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00346-ip-10-147-4-... |
Intelligent flight control of an autonomous quadrotor
Intelligent Flight Control
of an Autonomous Quadrotor
Syed Ali Raza and Wail Gueaieb
... | {"url":"http://www.docstoc.com/docs/136672568/Intelligent-flight-control-of-an-autonomous-quadrotor","timestamp":"2014-04-20T14:16:05Z","content_type":null,"content_length":"92757","record_id":"<urn:uuid:255ba963-24b3-4b74-801c-a69046f6b001>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005... |