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Bias in trials comparing paired continuous tests can cause researchers to choose the wrong screening modality
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BMC Med Res Methodol. 2009; 9: 4.
Bias in trials comparing paired continuous tests can... | {"url":"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2657218/?tool=pubmed","timestamp":"2014-04-20T16:27:18Z","content_type":null,"content_length":"120483","record_id":"<urn:uuid:21c17cc4-f666-47ba-b38d-c7120611fdce>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00273-ip-10-147-4-33.e... |
A History of Mechanics
"A remarkable work which will remain a document of the first rank for the historian of mechanics." — Louis de Broglie
In this masterful synthesis and summation of the science of mechanics, Rene Dugas, a leading scholar and educator at the famed Ecole Polytechnique in Paris, deals with the evoluti... | {"url":"http://store.doverpublications.com/0486656322.html","timestamp":"2014-04-18T03:16:51Z","content_type":null,"content_length":"45114","record_id":"<urn:uuid:26490ff8-a47e-4f25-86d8-0b71982ff62d>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00192-ip-10-147-4-33.ec2.internal.warc... |
all 4 comments
[–]kami_inu1 point2 points3 points ago
sorry, this has been archived and can no longer be voted on
[–]arcoalien[S] 0 points1 point2 points ago
sorry, this has been archived and can no longer be voted on
[–]kami_inu1 point2 points3 points ago
sorry, this has been archived and can no longer be voted on
I j... | {"url":"http://www.reddit.com/r/cheatatmathhomework/comments/1jeewb/trig_theta_2pi3_convert_from_polar_to_rectangular/","timestamp":"2014-04-18T03:17:35Z","content_type":null,"content_length":"57589","record_id":"<urn:uuid:eed7c233-31ee-4774-9303-716a61252e20>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/... |
Factoring Examples Page 2
Find the quotient
There's more stuff going on there than in a Salvador Dali painting. We'll turn this thing into a calmer, more peaceful Monet if we can. Shall we?
We can factor the numerator by grouping to find this crowded mess:
Then we cancel (y + 3) from the numerator and denominator and f... | {"url":"http://www.shmoop.com/polynomial-division-rational-expressions/factoring-examples-2.html","timestamp":"2014-04-19T22:23:50Z","content_type":null,"content_length":"36721","record_id":"<urn:uuid:9479b25a-725e-4622-8794-f054959d123a>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217... |
Posts from November 2008 on Güzin Bayraksan's OR Blog
Scheduling Zoo
November 21, 2008
The blog is about 20 days old and as part of the blog entries, I would like to share some OR websites from time to time. These will be tagged as “Useful OR websites”.
The first one of these entries is… the Scheduling Zoo. I was lo... | {"url":"http://opsres.wordpress.com/2008/11/","timestamp":"2014-04-20T11:23:14Z","content_type":null,"content_length":"43121","record_id":"<urn:uuid:78489b39-28c3-431a-bac4-fe685a161a89>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00576-ip-10-147-4-33.ec2.internal.warc.gz"} |
Simulation, the game we all can play!
Washington University's (St. Louis, MO) Robert Heider provides a game plan for using simulation in process control.
« Prev 1 | 2 Next » View on one page
This simple simulation demonstrates the potential problems with commercial process simulator packages.
Integration Algorithms
So ... | {"url":"http://www.controlglobal.com/articles/2004/422/?start=1","timestamp":"2014-04-21T15:45:58Z","content_type":null,"content_length":"62458","record_id":"<urn:uuid:c486a493-c792-42f8-a593-37866ffbabc2>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00401-ip-10-147-4-33.ec2.interna... |
Statistical properties of semiclasssical solutions of the non-stationary Schrödinger equation on metric graphs
Seminar Room 1, Newton Institute
The talk is devoted to the development of the semiclassical theory on quantum graphs. For the non-stationary Schrödinger equation, propagation of the Gaussian packets initially... | {"url":"http://www.newton.ac.uk/programmes/AGA/seminars/2010072717301.html","timestamp":"2014-04-17T04:23:05Z","content_type":null,"content_length":"6727","record_id":"<urn:uuid:17004536-0b82-4ecb-9675-3d72314f418c>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00005-ip-10-147-4-33.e... |
Pinpointing Utility - Less Wrong
Comments (154)
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What I took away from this post is that confusing a decision-theoretic utility function with hedonic utility will make you very sick, and you might have to go to the hospital. I like this.
Stay safe!
It would be interesting to see more exposition and discuss... | {"url":"http://lesswrong.com/lw/ggm/pinpointing_utility/","timestamp":"2014-04-18T00:14:51Z","content_type":null,"content_length":"582563","record_id":"<urn:uuid:502cb312-092d-40ca-8d42-4612cde57ae6>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00224-ip-10-147-4-33.ec2.internal.warc... |
Math Forum Discussions
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Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.
Topic: Simple question about irrationals, with a short note in the margin. :-)
Replies: 30 Last Post: Jan 15, ... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=2615491&messageID=9363359","timestamp":"2014-04-17T10:08:30Z","content_type":null,"content_length":"53695","record_id":"<urn:uuid:3c7834d5-54bd-4516-b9f1-865c3de0bc5a>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00099-ip-10-147-4... |
Add numbers
Suppose you want to calculate a price total for the inventory of a store or the total gross profit margins for all departments that are under budget for the year. There are several ways to add
What do you want to do?
Add numbers in a cell
Use the + (plus sign) arithmetic operator in a formula.
For example, ... | {"url":"http://office.microsoft.com/en-us/excel-help/add-numbers-HP010342146.aspx","timestamp":"2014-04-16T19:57:47Z","content_type":null,"content_length":"57319","record_id":"<urn:uuid:243be521-7d14-4862-8d5d-ce9b291f38e7>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00002-ip-10-14... |
Basic question about GSL ODE func RK4
05-07-2007 #1
Registered User
Join Date
May 2007
Basic question about GSL ODE func RK4
I am looking for some help on rk4 and coulomb repulsion.
It is a technical question but one has to go through the story to understand what I am tyring to achieve. Thank you already.
... | {"url":"http://cboard.cprogramming.com/game-programming/89587-basic-question-about-gsl-ode-func-rk4.html","timestamp":"2014-04-17T17:40:36Z","content_type":null,"content_length":"44476","record_id":"<urn:uuid:12e29c45-1808-4d42-810a-27144b0384eb>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-201404... |
Standards in this domain:
Reason with shapes and their attributes.
• 1.G.A.1 Distinguish between defining attributes (e.g., triangles are closed and three-sided) versus non-defining attributes (e.g., color, orientation, overall size) ; build and draw shapes to
possess defining attributes.
• 1.G.A.2 Compose two-... | {"url":"https://www.educateiowa.gov/pk-12/standards-curriculum/iowa-core/mathematics/grade-1/geometry","timestamp":"2014-04-16T11:49:24Z","content_type":null,"content_length":"24976","record_id":"<urn:uuid:9aa4141e-86f9-4089-8609-341537ba69cc>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-201404160... |
Infinity—Nothing to Trifle With
Philosopher and apologist William Lane Craig walks where most laymen fear to tread. Like an experienced actor, he has no difficulty imagining himself in all sorts of stretch roles—as a physicist, as
a biologist, or as a mathematician.
Since God couldn’t have created the universe if it ha... | {"url":"http://crossexaminedblog.com/2012/07/12/infinity-nothing-to-trifle-with/","timestamp":"2014-04-20T21:01:22Z","content_type":null,"content_length":"123302","record_id":"<urn:uuid:b8c16f1a-71e3-418b-a3e3-fe04c2ef1a55>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00267-ip-10-14... |
Ask Dr. Math Tour - The Archives
Ask Dr. Math Tour
The Dr. Math Archive is among the greatest benefits of the program. As we've answered questions we've saved the best of them, together with their answers, and have put them o... | {"url":"http://mathforum.org/dr.math/office_help/archives.html","timestamp":"2014-04-18T23:39:02Z","content_type":null,"content_length":"6709","record_id":"<urn:uuid:d221916a-1e2f-45d9-bf9b-e50db9b5faf6>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00293-ip-10-147-4-33.ec2.internal.w... |
Parallel and Perpendicular Lines Get in Line, Get in Shape Quiz
Think You Got it Down?
Test your knowledge again:
Parallel and Perpendicular Lines: Get in Line, Get in Shape Quiz
Think you’ve got your head wrapped around Parallel and Perpendicular Lines? Put your knowledge to the test. Good luck — the Stickman is count... | {"url":"http://www.shmoop.com/parallel-perpendicular-lines/quiz-3.html","timestamp":"2014-04-17T07:00:37Z","content_type":null,"content_length":"45346","record_id":"<urn:uuid:18ce9830-f03e-41b1-9229-aef0ce183e04>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00617-ip-10-147-4-33.ec2.i... |
Bear Science Tutor
Find a Bear Science Tutor
...I am a Delaware certified computer science teacher with more than ten years experience. I have also taught several computer engineering courses as an adjunct professor. Over the past twenty
years, I have successfully helped hundreds of students prepare for the math po... | {"url":"http://www.purplemath.com/Bear_Science_tutors.php","timestamp":"2014-04-16T19:25:46Z","content_type":null,"content_length":"23773","record_id":"<urn:uuid:1347ec30-d922-459b-99f8-fa819256af0c>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00149-ip-10-147-4-33.ec2.internal.warc... |
Got Homework?
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Need Help, Urgent, please: What doeas "N" mean in HCl 0,5 N
... | {"url":"http://openstudy.com/updates/5053bbd6e4b0a91cdf443410","timestamp":"2014-04-20T16:33:38Z","content_type":null,"content_length":"42016","record_id":"<urn:uuid:cc0b7f3d-0d09-4408-bc5a-b525cd5bce53>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00167-ip-10-147-4-33.ec2.internal.... |
l'Hopital's rule
February 22nd 2011, 02:37 PM #1
Junior Member
Jan 2010
l'Hopital's rule
Find $<br /> \lim_{x \to 0^{+}}\frac{x \log{x}}{\log{(1+2x)}}$
Can I do this:
$<br /> \lim_{x \to 0^{+}}\frac{x \log{x}}{\log{(1+2x)}}=<br /> \frac{\lim_{x \to 0^{+}} x \log{x}}{\lim_{x \to 0^{+}} \log{(1+2x)}}=\fra... | {"url":"http://mathhelpforum.com/calculus/172254-l-hopital-s-rule.html","timestamp":"2014-04-19T17:11:29Z","content_type":null,"content_length":"69164","record_id":"<urn:uuid:781e0895-f004-4305-8c51-fabb2448fd7c>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00380-ip-10-147-4-33.ec2.... |
STEPHEN ANCO, Brock University
Symmetry analysis and exact solutions of semilinear Schrodinger equations [PDF]
A novel symmetry method is used to obtain exact solutions to Schrodinger equations with a power nonlinearity in multi-dimensions. The method uses a separation technique to solve an equivalent
first... | {"url":"http://cms.math.ca/Events/winter12/res/sdd","timestamp":"2014-04-16T13:17:38Z","content_type":null,"content_length":"25185","record_id":"<urn:uuid:08ba6fb7-51f5-4336-9c82-1cc15e2aa03e>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00200-ip-10-147-4-33.ec2.internal.warc.gz"} |
capping at z-near plane [Archive] - OpenGL Discussion and Help Forums
I wonder if anyone tried capping at z-near plane? There's an old technique in "Red Book" but it fails for non-convex objects. This would be useful whith stencil shadows (capping the volume).
I have idea how to do that, but want to know others experi... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-151752.html","timestamp":"2014-04-17T16:10:35Z","content_type":null,"content_length":"9212","record_id":"<urn:uuid:d63c64a2-18d8-48a6-9fc6-3fbc8719626c>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00492-ip-10-147-4-... |
www.fractual.co.zaFractual | Informing South African individuals and communities about exploitative gas drilling
Last month saw the publication of Hansen et al's paper, "Global Surface Temperature Change" in Reviews of Geophysics. Yesterday, we received James Hansen's comments on his team's paper. It's
available fo... | {"url":"http://www.fractual.co.za/variability.php","timestamp":"2014-04-20T03:09:02Z","content_type":null,"content_length":"16804","record_id":"<urn:uuid:75607672-a3bd-416a-96c5-1e06c4502f98>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00568-ip-10-147-4-33.ec2.internal.warc.gz"} |
The Lemniscate
The symbol of an "eight on its side" is sometimes known as the lemniscate and is a glyph for infinity. The English mathematician John Wallis (1616-1703) introduced the symbol to represent
mathematical infinity in his Arithmetica Infinitorum of 1655. The term lemniscate refers to the shape itself, and the... | {"url":"http://www.byzant.com/Mystical/Symbols/Lemniscate.aspx","timestamp":"2014-04-19T17:01:14Z","content_type":null,"content_length":"11304","record_id":"<urn:uuid:71e930bf-07be-462b-ab95-f47599f2db10>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00268-ip-10-147-4-33.ec2.internal... |
Generate a butterworth filter. Default is a discrete space (Z) filter.
[b,a] = butter(n, Wc) low pass filter with cutoff pi*Wc radians
[b,a] = butter(n, Wc, 'high') high pass filter with cutoff pi*Wc radians
[b,a] = butter(n, [Wl, Wh]) band pass filter with edges pi*Wl and pi*Wh radians
[b,a] = butter(n... | {"url":"http://octave.sourceforge.net/signal/function/butter.html","timestamp":"2014-04-16T21:52:53Z","content_type":null,"content_length":"6692","record_id":"<urn:uuid:70e5233a-9632-4db0-af1d-8d3efbacdd10>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00648-ip-10-147-4-33.ec2.interna... |
Frequency analysis method
A frequency analysis method comprises using a window function to evaluate a emporal input signal present in the form of discrete sampled values. The windowed input signal is subsequently subjected to
Fourier transformation for the purpose of generating a set of coefficients. In order to develo... | {"url":"http://patents.com/us-5583784.html","timestamp":"2014-04-21T02:06:19Z","content_type":null,"content_length":"61291","record_id":"<urn:uuid:d9954e47-5388-4a08-bca7-03594bc36453>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00214-ip-10-147-4-33.ec2.internal.warc.gz"} |
problem with bearings
April 25th 2009, 06:18 PM #1
Apr 2009
problem with bearings
From home George jogs 3.5km NE and then 8.2km SE. Find the bearing of his final position from the starting position.
The problem about all bearing questions is that i don't know how to find the conventional like sometimes u ha... | {"url":"http://mathhelpforum.com/trigonometry/85651-problem-bearings.html","timestamp":"2014-04-18T09:03:49Z","content_type":null,"content_length":"44501","record_id":"<urn:uuid:e679c0af-961f-4f7a-a262-7ea56dcca7aa>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00155-ip-10-147-4-33.e... |
Math Help
December 31st 2007, 09:41 AM #1
Nov 2006
I have this estimator
T= (X_1 + X_2 +X_3 +......+ X_n)/n
now the variance of T should be Var(X)/(n^2) ? right?
because my teacher has written Var(X)/n
where am I wrong? where?
No I think I got it
it is because (Var[ X_1+ ...+X_n])/n^2= ... | {"url":"http://mathhelpforum.com/advanced-statistics/25392-variance.html","timestamp":"2014-04-17T03:57:53Z","content_type":null,"content_length":"30852","record_id":"<urn:uuid:c68f42d0-e09c-48d8-88d3-65a980d92c2f>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00046-ip-10-147-4-33.ec... |
IntroductionPixel StructureDynamic Range Expansion by Partial Charge TransferPrinciple of Charge TransferWhole Charge TransferPartial Charge TransferNon-Linearity due to Current DiffusionNon-Linearity Due to Initial Condition of a Photodiode and Its Influences on the Dynamic Range ExpansionConclusionsReferences and Not... | {"url":"http://www.mdpi.com/1424-8220/9/12/9452/xml","timestamp":"2014-04-19T12:01:38Z","content_type":null,"content_length":"73293","record_id":"<urn:uuid:bbeae01b-d3c7-4015-af5f-1a1f5b9b04e7>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00141-ip-10-147-4-33.ec2.internal.warc.gz"} |
Posts about news on Serious Stats
All posts in category news
Posted by Thom Baguley on July 2, 2012
For an hour or so earlier today Serious Stats was #1 in the amazon.co.uk sales rank for the category:
Books > Health, Family & Lifestyle > Psychology & Psychiatry > Methodology > Statistics
As of writing the rank has dro... | {"url":"http://seriousstats.wordpress.com/category/news/","timestamp":"2014-04-20T05:42:41Z","content_type":null,"content_length":"50825","record_id":"<urn:uuid:d42af562-9696-4e05-91ac-85b9accdd9ba>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00192-ip-10-147-4-33.ec2.internal.warc.... |
64-bit floats with the Propeller as pairs of 32-bit ones [Archive] - Parallax Forums
07-20-2009, 04:08 AM
64-bit Double precision float arithmetic can be done with· pairs of 32-bit Single precision floats using the Propeller's Floating point software package. Each 64-bit Double operand is the unevaluated
sum of two 32... | {"url":"http://forums.parallax.com/archive/index.php/t-114595.html","timestamp":"2014-04-16T16:01:08Z","content_type":null,"content_length":"34584","record_id":"<urn:uuid:90c9a1e9-a354-4390-bc2a-b73c0e70622a>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00625-ip-10-147-4-33.ec2.inte... |
Homework Help
Posted by Kylie on Wednesday, August 24, 2011 at 3:36pm.
What is 2 + 2? = 4
What is 2 * 2? = 4
So, the sum and the product of these two numbers is the same. Are there other numbers that have this same property? Yes
Determine all number pairs x and y such that the product of x and y and the sum of x and y ... | {"url":"http://www.jiskha.com/display.cgi?id=1314214608","timestamp":"2014-04-21T04:18:50Z","content_type":null,"content_length":"9037","record_id":"<urn:uuid:202cc973-d570-4428-ba6e-33f1771eaaa2>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00542-ip-10-147-4-33.ec2.internal.warc.gz... |
The Reflective Educator
So as expected, Apple announced their new textbooks for the iPad. Looking over the specs and what is possible to create with the iPad, it doesn't look like they've offered a complete set of features
for their book, but buried in their authoring features is the ability to embed HTML widgets into ... | {"url":"http://davidwees.com/content/apple-ipad-textbooks?page=0%2C2","timestamp":"2014-04-17T18:24:43Z","content_type":null,"content_length":"55920","record_id":"<urn:uuid:689141af-96f4-4a44-9ea7-3a06bc0f2ffa>","cc-path":"CC-MAIN-2014-15/segments/1397609530895.48/warc/CC-MAIN-20140416005210-00117-ip-10-147-4-33.ec2.in... |
meshgrid (MATLAB Functions)
MATLAB Function Reference
Generate X and Y matrices for three-dimensional plots
[X,Y] = meshgrid(x,y) transforms the domain specified by vectors x and y into arrays X and Y, which can be used to evaluate functions of two variables and three-dimensional mesh/surface plots. The
rows of th... | {"url":"http://matlab.izmiran.ru/help/techdoc/ref/meshgrid.html","timestamp":"2014-04-16T22:33:48Z","content_type":null,"content_length":"5901","record_id":"<urn:uuid:4eb56642-998b-4861-94c8-ce45a5d1cea1>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00103-ip-10-147-4-33.ec2.internal.... |
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An easy way to memorize the differentiations of trig functions... | {"url":"http://openstudy.com/updates/508b999ae4b077c2ef2e9283","timestamp":"2014-04-18T20:48:21Z","content_type":null,"content_length":"78619","record_id":"<urn:uuid:8765e239-61f7-445a-9c3a-f25bc84f707d>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00404-ip-10-147-4-33.ec2.internal.w... |
Non Linear Pharmacokinetics Ppt Presentation
Non linear pharmacokinetics
Presentation Description
No description available.
By: aashishweta20 (30 month(s) ago)
sir please allow me to download this presentation
By: vharika (31 month(s) ago)
presentation is so god sir please mail this presentation to my email
By: pip... | {"url":"http://www.authorstream.com/Presentation/vicky_5593-605791-non-linear-pharmacokinetics/","timestamp":"2014-04-19T15:13:27Z","content_type":null,"content_length":"199314","record_id":"<urn:uuid:eed62543-02b5-4fb1-9864-8b3387e0d5b4>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-... |
For a circle with center point P, cord XY is the
Author Message
For a circle with center point P, cord XY is the [#permalink] 08 Feb 2012, 17:44
This post received... | {"url":"http://gmatclub.com/forum/for-a-circle-with-center-point-p-cord-xy-is-the-127286.html","timestamp":"2014-04-19T07:16:32Z","content_type":null,"content_length":"309260","record_id":"<urn:uuid:8ef957a1-da10-40f8-97fd-ca158632c838>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-0... |
Minimum Classroom Size and Number of Students Per Classroom:
C. Kenneth Tanner
The University of Georgia
... | {"url":"http://sdpl.coe.uga.edu/research/territoriality.html","timestamp":"2014-04-16T04:10:23Z","content_type":null,"content_length":"22083","record_id":"<urn:uuid:2d7c150c-ad76-4e0a-919c-f7b551c944d0>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00465-ip-10-147-4-33.ec2.internal.w... |
the speed of a bus is 54 kmph and including stoppages
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Ann Theressa
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Placed User Comments (More)
Lekshmi Narasimman MN
5 Days ago
Thanks ton for this site . This site is my main reason for clearing cts written which happend on 5/4/2014 in chennai . To... | {"url":"http://www.m4maths.com/3731-Excluding-stoppages-the-speed-of-a-bus-is-54-kmph-and-including-stoppages-it-is-45-kmph-For-how-many.html?SOURCE=CDS","timestamp":"2014-04-17T04:11:51Z","content_type":null,"content_length":"110717","record_id":"<urn:uuid:b5455ac1-07be-4b97-9325-377e5fb38f8c>","cc-path":"CC-MAIN-2014... |
Key transmission parameters of an institutional outbreak during the 1918 influenza pandemic estimated by mathematical modelling
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Theor Biol Med Model. 2006; 3: 38.
Key transmission parameters of an... | {"url":"http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1693548/","timestamp":"2014-04-17T02:25:41Z","content_type":null,"content_length":"91654","record_id":"<urn:uuid:f3b88a3b-b1ac-4f0f-adca-4ba4a645a186>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00413-ip-10-147-4-33.ec2.internal.wa... |
Majorana Ghosts: From topological superconductor to the origin of neutrino mass, three generations and their mass mixing
The existence of three generations of neutrinos and their mass mixing is a deep mystery of our universe. On the other hand, Majorana's elegant work on the real solution of Dirac equation predicted
th... | {"url":"https://perimeterinstitute.ca/videos/majorana-ghosts-topological-superconductor-origin-neutrino-mass-three-generations-and-their","timestamp":"2014-04-16T04:49:24Z","content_type":null,"content_length":"30524","record_id":"<urn:uuid:0b1c2056-2335-465c-98a6-0ff4b08133c2>","cc-path":"CC-MAIN-2014-15/segments/1398... |
Rebuilding the Tower of Hanoi
That second part of the aforementioned algorithm modification seems a bit overly elaborate. It is simple enough to write up an inorder traversal function, but it would be so much easier if we wrote
out the moves in such a way that the final printing is done by running through the array in ... | {"url":"http://www.drdobbs.com/parallel/rebuilding-the-tower-of-hanoi/232500363?pgno=3","timestamp":"2014-04-17T13:11:55Z","content_type":null,"content_length":"94365","record_id":"<urn:uuid:200ae0b5-dd59-437a-b1b8-71d12b6a35c2>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00239-ip-... |
Jinc function
This afternoon I ran across the jinc function for the first time.
The sinc function is defined by
sinc(t) = sin(t) / t.
The jinc function is defined analogously by
jinc(t) = J[1](t) / t
where J[1] is a Bessel function. Bessel functions are analogous to sines, so the jinc function is analogous to the sinc ... | {"url":"http://www.johndcook.com/blog/2012/02/01/jinc-function/","timestamp":"2014-04-16T13:04:52Z","content_type":null,"content_length":"33957","record_id":"<urn:uuid:be7d3a01-bfb1-4a24-a6ea-280a5b10aed9>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00141-ip-10-147-4-33.ec2.interna... |
Please help me with this differential calculus question?
December 8th 2012, 12:47 PM #1
Nov 2012
Please help me with this differential calculus question?
If the total cost (in £s) function is given by
TC = 2Q^2 + 158Q - 12000
where Q is the quantity produced
(a) What Q would minimise total costs... | {"url":"http://mathhelpforum.com/differential-equations/209361-please-help-me-differential-calculus-question.html","timestamp":"2014-04-17T09:04:18Z","content_type":null,"content_length":"51005","record_id":"<urn:uuid:137d8a22-0300-4ca4-8855-7b7d98674990>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MA... |
Hexadecimal and decimal convert code
Author Hexadecimal and decimal convert code
please someone can teach me how to write a java code on convert hexadecimal to decimal and the decimal to hexadecimal.
Joined: Aug 17, w... | {"url":"http://www.coderanch.com/t/396987/java/java/Hexadecimal-decimal-convert-code","timestamp":"2014-04-16T14:02:16Z","content_type":null,"content_length":"36930","record_id":"<urn:uuid:394ca974-ae7b-48de-afc4-e37355df54d2>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00132-ip-10... |
Wolfram Demonstrations Project
Solitons from the Korteweg-de Vries Equation
John Scott Russell, a Scottish naval engineer, reported in 1834 on his observation of a remarkable solitary water wave moving a considerable distance down a narrow channel. Korteweg and de Vries
(1895) developed a theory to describe weakly nonl... | {"url":"http://www.demonstrations.wolfram.com/SolitonsFromTheKortewegDeVriesEquation/","timestamp":"2014-04-20T21:01:52Z","content_type":null,"content_length":"45680","record_id":"<urn:uuid:b24a80cf-d5ea-4de5-8a59-2bb8b4bab5de>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00247-ip-10... |
Black holes
Black holes are a general relativitic result. 'Hyperspace' is a result from Heim theory, which has little to no experimental validation in the area of gravity. Hence, asking what a black hole can do
with hyperspace isn't a valid question, they are different theories.
What would a supermassive black hole col... | {"url":"http://lofi.forum.physorg.com/Black-holes_10831.html","timestamp":"2014-04-20T08:22:16Z","content_type":null,"content_length":"153949","record_id":"<urn:uuid:34777cec-a4e3-4459-95dd-1f7737b8e021>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00026-ip-10-147-4-33.ec2.internal.w... |
New Dayton Audio Ultimax 15" Subwoofer at PE
post #1 of 61
1/31/13 at 10:35am
Thread Starter
Does this driver show any promise?
•Dual 2 ohm, 2-layer copper voice coils
•Large vented pole piece and under-spider venting
•Black anodized aluminum former and black pole improves heat dissipation
•Thick, one-piece Nomex honey... | {"url":"http://www.avsforum.com/t/1455549/new-dayton-audio-ultimax-15-subwoofer-at-pe","timestamp":"2014-04-18T04:08:58Z","content_type":null,"content_length":"207222","record_id":"<urn:uuid:ef868f7f-9296-49a2-83d5-4b694ccbcc02>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00382-ip-... |
Moving the camera with a constant velocity [Archive] - OpenGL Discussion and Help Forums
Ehsan Kamrani
02-15-2006, 03:49 AM
I want to move the camera on a curve with a constant velocity. As you know, V = dy/dx . If i want to move the camera on the following curve, V is not constant:
Y = 4 * X^2 + sin( 2 * X )
How can ... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-140745.html","timestamp":"2014-04-16T13:35:49Z","content_type":null,"content_length":"13164","record_id":"<urn:uuid:48e44f3e-3b73-4fc3-9d38-b25883ba268e>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00208-ip-10-147-... |
The Interesting Test
What is The Interesting Test?
The Interesting Test is a collection of mathematical problems, puzzles and brainteasers. The material is designed to be unfamiliar to almost all high school students; this is simply our way of making
sure everyone is on an equal footing. Despite initial appearances, ea... | {"url":"http://www.cs.cmu.edu/~leap/interestingtest.html","timestamp":"2014-04-16T17:10:44Z","content_type":null,"content_length":"3835","record_id":"<urn:uuid:80ab8edb-9b93-4827-a520-fdb28bec3e22>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00082-ip-10-147-4-33.ec2.internal.warc.g... |
Analysis of a local search heuristic for facility location problems
Results 1 - 10 of 106
- Journal of the ACM , 1999
"... ..."
- Proceedings of the ACM SIGMOD International Conference on Management of data, Philadelphia , 2000
"... We consider the following two instances of the projective clustering problem: Given a s... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=182865","timestamp":"2014-04-21T06:38:56Z","content_type":null,"content_length":"40046","record_id":"<urn:uuid:a6fced1c-c2a2-468e-bca9-edd6c9aa0aa4>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00067-ip-10-147-4-33.ec2.internal.war... |
Re: st: speed question: -collapse- vs -egen-
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: speed question: -collapse- vs -egen-
From "Sergiy Radyakin" <serjradyakin@gmail.com>
To statalist@hsphsun2.harvard.edu
Subject Re: st: speed question: -collapse- vs -egen-
Date Fri,... | {"url":"http://www.stata.com/statalist/archive/2008-04/msg01120.html","timestamp":"2014-04-16T13:18:28Z","content_type":null,"content_length":"12086","record_id":"<urn:uuid:7a9097f4-16fc-4dfe-b494-1bf33fbdbb01>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00072-ip-10-147-4-33.ec2.in... |
Post a reply
bobbym wrote:
When I divide the first term by it, it becomes simply (Pi/P).
When I divide the second term by it, it becomes: -((Pi-w)n)/P
You mean multiply instead of divide, and you are correct up to there.
Yes, sorry again. I do mean multiply.
What have I done wrong after? I reall... | {"url":"http://www.mathisfunforum.com/post.php?tid=19461&qid=269207","timestamp":"2014-04-17T04:06:45Z","content_type":null,"content_length":"28634","record_id":"<urn:uuid:9c8b8c2f-2d95-417c-97ac-8eff459694b3>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00039-ip-10-147-4-33.ec2.int... |
Math Tools Discussion: Traffic Jam Applet tool, Teaching Mathematics as a Science
Discussion: Traffic Jam Applet tool
Topic: Teaching Mathematics as a Science
Related Item: http://mathforum.org/mathtools/tool/10/
<< see all messages in this topic
< previous message
Subject: RE: Teaching Mathematics as a Scie... | {"url":"http://mathforum.org/mathtools/discuss.html?id=10&context=tool&do=r&msg=12954","timestamp":"2014-04-18T23:47:03Z","content_type":null,"content_length":"17015","record_id":"<urn:uuid:e9f2d1db-ed0a-4a3e-8d91-643776b0f8b4>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00279-ip-10... |
Buoyant Force
Welcome to PF!
First, the definition is that the buoyancy force equals mass of object (sand core) minus mass of displaced fluid (steel), that is, the negative of what you wrote.
Secondly, from that definition you can see that you also need to use the fact, that the mass of the displaced fluid is calculate... | {"url":"http://www.physicsforums.com/showthread.php?t=571608","timestamp":"2014-04-19T02:12:10Z","content_type":null,"content_length":"32695","record_id":"<urn:uuid:fc57f149-0208-4f2a-9249-955388da504f>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00299-ip-10-147-4-33.ec2.internal.wa... |
Numerical Approximation of Hyperbolic Systems of Conservation
Results 1 - 10 of 166
- J. Comput. Phys , 1998
"... . Conservation laws with source terms often have steady states in which the flux gradients are nonzero but exactly balanced by source terms. Many numerical methods (e.g., fractional step
methods) have diffi... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=75157","timestamp":"2014-04-19T23:48:25Z","content_type":null,"content_length":"41653","record_id":"<urn:uuid:d3660045-cac6-4a75-bad8-33627788a6d7>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00030-ip-10-147-4-33.ec2.internal.warc... |
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Your question is ready. Sign... | {"url":"http://openstudy.com/updates/511f25f8e4b06821731c5813","timestamp":"2014-04-19T02:01:26Z","content_type":null,"content_length":"205798","record_id":"<urn:uuid:5a2747b7-4e94-4d55-b588-41dcc8f72c30>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00610-ip-10-147-4-33.ec2.internal.... |
Academia and scientific integrity
The following story is a typical example of the things that I viscerally dislike about the current Academia and one of the reasons why I am so looking forward to be gone. The story will show that a
portion of the Academia is literally built on
• corruption
• parasitism
• superfic... | {"url":"http://motls.blogspot.com/2006/12/academia-and-scientific-integrity.html","timestamp":"2014-04-16T13:03:01Z","content_type":null,"content_length":"202821","record_id":"<urn:uuid:8f89467b-5b06-4f35-a2ff-adb23875e45e>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00319-ip-10-14... |
Constructing a metric over a lattice
up vote 5 down vote favorite
Consider a lattice $({\cal L}, \wedge, \vee)$ with an antimonotonic function $f: {\cal L} \rightarrow {\mathbb R}$ defined on it (i.e $x \preceq y \implies f(x) \ge f(y)$).
$f$ is said to be submodular if for all $x,y \in {\cal L}$, $$f(x) + f(y) \ge f(x... | {"url":"http://mathoverflow.net/questions/15964/constructing-a-metric-over-a-lattice?sort=oldest","timestamp":"2014-04-18T21:21:57Z","content_type":null,"content_length":"73195","record_id":"<urn:uuid:b23a10cc-0cd2-45ef-b3d0-0f58f061796a>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-... |
5 replies
Case Assigner
I just read the "Where ist the fish?" topic? This reminds me of another one named "Where is the father"? Maybe some of you already know this one. I guess it is quite famous, at least in Germany it
is. You can try to solve it. And it definetely works - you can give an adequate solution to this pr... | {"url":"http://www.englishforums.com/English/WhereIsTheFather/vrzhw/post.htm","timestamp":"2014-04-20T18:27:52Z","content_type":null,"content_length":"32411","record_id":"<urn:uuid:337ce228-fe97-4338-95d4-39717a83ef41>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00183-ip-10-147-4-3... |
Please Help on Inverse Operators; Differential Equation !!!
April 12th 2013, 05:59 PM #1
Apr 2013
Please Help on Inverse Operators; Differential Equation !!!
Hi guys,
I have an exam tomorrow, for which I am prepared for except for the topic of inverse operator. I've been trying to learn this topic for the l... | {"url":"http://mathhelpforum.com/differential-equations/217354-please-help-inverse-operators-differential-equation.html","timestamp":"2014-04-17T21:59:06Z","content_type":null,"content_length":"39019","record_id":"<urn:uuid:f62a3a4b-fa68-4a5b-9de5-5039d74c1454>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc... |
Population doubling time of keratinocyte,etc. -
Population doubling time of keratinocyte,etc. - (Mar/01/2005 )
again thanks!!
i've done some preliminary tests, what i suspected was the period of keratinocyte adherent might be due to some factors. around the results i have got was the seeding density. if i seed too les... | {"url":"http://www.protocol-online.org/biology-forums/posts/5398more1.html","timestamp":"2014-04-18T18:24:15Z","content_type":null,"content_length":"11528","record_id":"<urn:uuid:98f64046-5351-44d4-9efe-aec66c57130a>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00378-ip-10-147-4-33.e... |
Coding help.
Coding help.
I need to code y= (-b + (b^2 – 4ac)^1/2 )/2a
Variables a,b,c,and y are of type float.
And for this code the square root is exactly the same as it is IRL, like Sqrt 16=4
Thanks alot :)
So, what have you tried?
idk how to code it, so i haven't tried anything!!
Start w... | {"url":"http://cboard.cprogramming.com/cplusplus-programming/134805-coding-help-printable-thread.html","timestamp":"2014-04-17T08:51:37Z","content_type":null,"content_length":"7237","record_id":"<urn:uuid:4b26d213-d1f0-44ab-a41c-16e70da3bb26>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-2014041600... |
Richland Hills, TX Trigonometry Tutor
Find a Richland Hills, TX Trigonometry Tutor
...I use OSHA, National Cancer Institute (NCI), EPA, and other health and safety systems to analyze statistics for the DFW region, but also for National or International trends. Some Key terms
from the NCI age-adjusted rate An age-ad... | {"url":"http://www.purplemath.com/Richland_Hills_TX_trigonometry_tutors.php","timestamp":"2014-04-20T01:49:58Z","content_type":null,"content_length":"24670","record_id":"<urn:uuid:77c44605-d9a9-4315-a034-3c7ff7f1cfc1>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00209-ip-10-147-4-33... |
The Napoleon Point and More
Date: 09/04/98 at 03:10:25
From: Adi Schulthess
Subject: Fermat
On each side of a triangle you put on triangles having three sides of
the same length. You take the centers of them and draw a line to the
opposite vertex in the original triangle. Does anybody know the proof
why the three lines... | {"url":"http://mathforum.org/library/drmath/view/55042.html","timestamp":"2014-04-17T00:56:04Z","content_type":null,"content_length":"8508","record_id":"<urn:uuid:230e1bc8-0f12-4a0e-a84e-b7d89af8f213>","cc-path":"CC-MAIN-2014-15/segments/1397609526102.3/warc/CC-MAIN-20140416005206-00657-ip-10-147-4-33.ec2.internal.warc... |
Homework Help
Posted by Adam-- Dr Bob, Help! on Wednesday, September 26, 2012 at 5:34pm.
I Posted this question the other day:
A 1.00 g sample of enriched water, a mixture of H2O and D2O, reacted completely with Cl2 to give a mixture of HCl and DCl. The HCl and DCl were then dissolved in pure H2O to make a 1.00 L solut... | {"url":"http://www.jiskha.com/display.cgi?id=1348695241","timestamp":"2014-04-21T15:19:27Z","content_type":null,"content_length":"12197","record_id":"<urn:uuid:68452318-9068-4411-82c4-eace4806c743>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00603-ip-10-147-4-33.ec2.internal.warc.g... |
Re: st: Log transform of skewed data
[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]
Re: st: Log transform of skewed data
From Roger Newson <roger.newson@kcl.ac.uk>
To statalist@hsphsun2.harvard.edu
Subject Re: st: Log transform of skewed data
Date Wed, 02 Jun 2004 21:56:18 +0100
... | {"url":"http://www.stata.com/statalist/archive/2004-06/msg00083.html","timestamp":"2014-04-19T14:38:08Z","content_type":null,"content_length":"7760","record_id":"<urn:uuid:7f7cd487-3d3c-42e0-ae9a-f3e229738d89>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00537-ip-10-147-4-33.ec2.inte... |
Complex numbers with a polenom!
March 19th 2011, 01:56 AM #1
Mar 2011
So here is this combined polynomial & complex numbers; I couldn't solve it!
F(z)= z^7 + a(6)*z^6 + a(5)*z^5 + a(4)*z^4 + a(3)*z^3 + a(2)*z^2 + a(1)*z^1+a(0)
It is given that z=-4-2i is a root of F(z),F'(z),F''(z) (I guess it's correct... | {"url":"http://mathhelpforum.com/calculus/175027-complex-numbers-polenom.html","timestamp":"2014-04-19T14:07:59Z","content_type":null,"content_length":"53340","record_id":"<urn:uuid:ec7ef317-fc5e-47fc-b995-f3829cbfae79>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00452-ip-10-147-4-3... |
Phase Diagrams
Mixtures of Phases of Matter
Phase diagrams are used to describe equilibrium situations in which two or more phases of matter exist together in pure substances or in solutions. They are widely used in the physical sciences,
especially in the fields of metallurgy, materials science, geology, and physical ... | {"url":"http://people.ucalgary.ca/~kmuldrew/cryo_course/cryo_chap6_1.html","timestamp":"2014-04-20T01:03:00Z","content_type":null,"content_length":"7709","record_id":"<urn:uuid:0267c6b6-520b-4074-af9d-6c08bbe474b1>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00626-ip-10-147-4-33.ec2... |
More S&P 500 correlation
July 28, 2011
By Pat
Here are some additions to the previous post on S&P 500 correlation.
Correlation distribution
Before we only looked at mean correlations. However, it is possible to see more of the distribution than just the mean. Figures 1 and 2 show several quantiles: 10%, 25%, 50%, 75%... | {"url":"http://www.r-bloggers.com/more-sp-500-correlation/","timestamp":"2014-04-21T04:43:53Z","content_type":null,"content_length":"39386","record_id":"<urn:uuid:383669e5-1300-4ba7-9324-173e1b660813>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00109-ip-10-147-4-33.ec2.internal.war... |
Posts by jbennet
17,127 posts since Apr 2005
Reputation Points: 1,618 [?]
Q&As Helped to Solve: 736 [?]
Skill Endorsements: 38 [?]
•Team Colleague
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Built it :). All seems good :)
The Celeron is much nippier than the old P4, really impressed with it. Ive got an i3 on my work laptop. While not as fast as that... | {"url":"http://www.daniweb.com/members/33110/jbennet/posts","timestamp":"2014-04-20T00:48:50Z","content_type":null,"content_length":"78911","record_id":"<urn:uuid:315e77a2-c40d-4c88-8f2c-f49978ba5485>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00051-ip-10-147-4-33.ec2.internal.warc... |
General simple closed curve equation
I have a list of points on a 2D simple closed curve and I'd like to approximate that curve using a polynomial such that the approximation will be given by:
Ʃa[i,j]x^iy^j = 0
However, I still need to limit the a[i,j] to make sure the approximation is also a simple closed curve, while... | {"url":"http://www.physicsforums.com/showthread.php?p=4176884","timestamp":"2014-04-20T18:36:24Z","content_type":null,"content_length":"19767","record_id":"<urn:uuid:33052ab9-7422-4d82-8ac5-51e5e827a922>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00144-ip-10-147-4-33.ec2.internal.... |
Abstract: An accurate computational method is presented for determining the mass distribution in a mature spiral galaxy from a given rotation curve by applying Newtonian dynamics for an
axisymmetrically rotating thin disk of finite size with or without a central spherical bulge. The governing integral equation for mass... | {"url":"https://www.mdpi.com/journal/ajax/latest_articles/galaxies","timestamp":"2014-04-20T09:13:03Z","content_type":null,"content_length":"13500","record_id":"<urn:uuid:31cdef2d-ff3d-4e2c-8598-d8308e4801a8>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00234-ip-10-147-4-33.ec2.inter... |
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Topic: Even/Odd Cardinality, Generalized
Replies: 3 Last Post: Jan 14, 2011 2:31 PM
Messages: [ Previou... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=2227534&messageID=7357947","timestamp":"2014-04-20T19:15:10Z","content_type":null,"content_length":"20832","record_id":"<urn:uuid:c6ebb819-ec28-4ed6-beef-49204f3fa112>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00582-ip-10-147-4... |
On 27 Aug 2004 03:24:25 -0700,
http://www.velocityreviews.com/forums/(E-Mail Removed)
(ALuPin) wrote:
>What library do I need to declare the following signal:
>constant L: integer:=log2(N); --ceiling log2(N)
Sadly, that one is missing... but this will work
in both synthesis and simulation:
package usefuls is
--- find m... | {"url":"http://www.velocityreviews.com/forums/t22799-log2-n.html","timestamp":"2014-04-19T00:38:21Z","content_type":null,"content_length":"38142","record_id":"<urn:uuid:11c14efe-5ed7-48d7-a94f-7809935827d3>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00351-ip-10-147-4-33.ec2.interna... |
Geometry Tutors
Kensington, MD 20895
Successful Math Tutor -- Recently retired high school math teacher
I recently retired from a local private high school. I have taught all math subjects including Algebra 1, Algebra 2,
, Trigonometry, Pre-Calculus, and AP Calculus AB. I have taught math for 44 years. I have tutored ... | {"url":"http://www.wyzant.com/Mc_Lean_VA_geometry_tutors.aspx","timestamp":"2014-04-21T06:09:53Z","content_type":null,"content_length":"61034","record_id":"<urn:uuid:8a1c20bb-3595-4c94-8a29-a8ae576faae4>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00589-ip-10-147-4-33.ec2.internal.... |
A. The multiconfiguration time-dependent Hartree method
B. Coordinates and Hamiltonian
1. Kinetic energy operator
2. Potential energy operator
C. Initial wave packet
D. Final state analysis
1. Probabilities
2. Cross sections
A. Numerical details
B. Probabilities and cross sections | {"url":"http://scitation.aip.org/content/aip/journal/jcp/127/11/10.1063/1.2776266","timestamp":"2014-04-18T14:04:24Z","content_type":null,"content_length":"96863","record_id":"<urn:uuid:95a1b162-208d-43f8-ba03-f67617176421>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00042-ip-10-14... |
Fulshear Trigonometry Tutor
...I have seen the look regarding subjects from an elementary level to a collegiate level. Regardless of what subject I am working with someone on, I will strive to make sure the student
understands. Here is a list of the subjects I've have taught or am capable of teaching: Math- Pre-Alg... | {"url":"http://www.purplemath.com/fulshear_tx_trigonometry_tutors.php","timestamp":"2014-04-19T14:51:49Z","content_type":null,"content_length":"23979","record_id":"<urn:uuid:303eb668-dcab-4c66-abb7-4a5ed0548024>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00511-ip-10-147-4-33.ec2.in... |
digitalmars.D - double trouble
"John C" <johnch_atms hotmail.com>
I'm writing routines for numeric formatting and this involves round-tripping
of floating-point numbers. I'm storing the integral and fractional parts in
a string buffer, and in a separate variable storing the decimal point
position, and these are conve... | {"url":"http://www.digitalmars.com/d/archives/digitalmars/D/34260.html","timestamp":"2014-04-20T01:37:45Z","content_type":null,"content_length":"18018","record_id":"<urn:uuid:91dd7709-c1ff-4df6-94db-da12574f1f11>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00055-ip-10-147-4-33.ec2.i... |
An expression with square roots
How would you calculate $(\sqrt {2} - \sqrt {5}) \cdot \sqrt{ 7 + 2 \sqrt {10}}$ ?
Hello, p.numminen! How would you calculate: . $(\sqrt {2} - \sqrt {5}) \cdot \sqrt{ 7 + 2 \sqrt {10}}$ ? There is a very sneaky trick we can pull . . . First, we notice that: . $7 + 2\sqrt{10}$ .just
happe... | {"url":"http://mathhelpforum.com/algebra/20632-expression-square-roots.html","timestamp":"2014-04-20T11:09:28Z","content_type":null,"content_length":"47540","record_id":"<urn:uuid:e0b6dd56-76f7-4bc3-b453-b5a0d3ef5c9d>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20140416005218-00077-ip-10-147-4-33... |
[Maxima] Assume behavior
Karl-Dieter Crisman kcrisman at gmail.com
Mon Sep 28 12:49:09 CDT 2009
Dear Maxima list,
Thanks for taking a newbie question. I have used Maxima through Sage
a fair amount, but only recently started using it stand-alone as well
(some of you know this already). I have a question about the use ... | {"url":"https://www.ma.utexas.edu/pipermail/maxima/2009/018811.html","timestamp":"2014-04-18T08:03:24Z","content_type":null,"content_length":"4878","record_id":"<urn:uuid:f349f327-123e-4e99-93b5-6db30ff268cd>","cc-path":"CC-MAIN-2014-15/segments/1397609533121.28/warc/CC-MAIN-20140416005213-00378-ip-10-147-4-33.ec2.inte... |
Physics Forums - View Single Post - Numerical methods
Can anyone here give me the examples of most test problems of Numerical Methods in the Mid and End of semester at undergraduate level?
What is the most test problems of Numerical Methods in the mid and end of semester at undergraduate level that probably must come ... | {"url":"http://www.physicsforums.com/showpost.php?p=1425942&postcount=1","timestamp":"2014-04-20T18:37:23Z","content_type":null,"content_length":"9067","record_id":"<urn:uuid:7920a552-86ef-44fc-882a-686be60102d1>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00556-ip-10-147-4-33.ec2.... |
[R-sig-DCM] number of iterations
Wirth, Ralph (GfK SE) ralph.wirth at gfk.com
Wed Feb 23 18:56:24 CET 2011
I think Dimitris problem is due to the huge amount of the respondents. Their draws are generated in the inner (i.e. the second) loop. Loops are slow in R, and apply doesn't help much. I tried to vetorize the inner... | {"url":"https://stat.ethz.ch/pipermail/r-sig-dcm/2011-February/000023.html","timestamp":"2014-04-20T17:17:07Z","content_type":null,"content_length":"8637","record_id":"<urn:uuid:2ade8eb4-3f92-4529-8170-3ca5c9ce72bb>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00495-ip-10-147-4-33.ec... |
Card Counting
BlackJack « «
The American mathematician, Dr Edward O. Thorpe, is generally considered the father of card counting with his book, “Beat the Dealer”, first published in 1962. Even before this, a small number of
professional card counters were already in operation across America. The 1957 book, “Playing Bla... | {"url":"http://whiteknucklecards.com/blackjack/cardcounting.html","timestamp":"2014-04-18T06:34:30Z","content_type":null,"content_length":"19527","record_id":"<urn:uuid:c41b3a5d-2605-472a-896c-c3170c16e64c>","cc-path":"CC-MAIN-2014-15/segments/1398223204388.12/warc/CC-MAIN-20140423032004-00089-ip-10-147-4-33.ec2.intern... |
[Scipy-tickets] [SciPy] #1588: scipy.optimize.cobyla not consistant in Windows
[Scipy-tickets] [SciPy] #1588: scipy.optimize.cobyla not consistant in Windows
SciPy Trac scipy-tickets@scipy....
Mon Jan 23 18:35:26 CST 2012
#1588: scipy.optimize.cobyla not consistant in Windows
Reporter: casperskovby | Owner: s... | {"url":"http://mail.scipy.org/pipermail/scipy-tickets/2012-January/004912.html","timestamp":"2014-04-16T07:46:26Z","content_type":null,"content_length":"4562","record_id":"<urn:uuid:23eed19e-eb50-4284-84b2-039951e319ec>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00468-ip-10-147-4-... |
Integration and radiality: measuring the extent of an individual's connectedness and reachability in a network. Social Networks 20(1): 89–105
Results 1 - 10 of 15
- Journal of Mathematical Sociology , 2001
"... The betweenness centrality index is essential in the analysis of social networks, but costly to compute. Curr... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=17596","timestamp":"2014-04-16T14:10:51Z","content_type":null,"content_length":"36380","record_id":"<urn:uuid:d237bf21-6438-432b-9eae-935b39f322e7>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00453-ip-10-147-4-33.ec2.internal.warc... |
A GAME FOR 2, 3 OR 4 PLAYERS (Ages: 8 to Adult)
Cribbage is basically a two player game, but can be played with 4 players as teams of 2 players each. E. S. Lowe (A Milton Bradley Company) Derby Cribbage board has three tracks and allows the play
of 3 players. This cut throat game for three is explained below.
OBJECT OF... | {"url":"http://www.centralconnector.com/GAMES/Cribbage.htm","timestamp":"2014-04-20T13:19:05Z","content_type":null,"content_length":"22462","record_id":"<urn:uuid:2c459a40-4b0e-4b67-a8d5-20c7e4bf7ce5>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00314-ip-10-147-4-33.ec2.internal.war... |
Mplus Discussion >> Data interpretation
Anonymous posted on Tuesday, January 16, 2001 - 3:47 pm
In a time-invariant conditional LTM, how do you interpret the significant effects of the predictors on the slope (in this case, an overall downward trend in health over time).
Education: estimate .074 (se .056)
Energy: estim... | {"url":"http://www.statmodel.com/cgi-bin/discus/discus.cgi?pg=prev&topic=14&page=100","timestamp":"2014-04-16T08:26:23Z","content_type":null,"content_length":"116218","record_id":"<urn:uuid:7228a239-ae9c-46eb-8cf3-891af81ec2c4>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00443-ip-1... |
Degrees of freedom
A square is composed of many particles with the constraint that distance between every particle is the fixed.so such a square is moving in XY plane.
if i consider two particles they have 4-1 =3degree of freedom(one is subtracted due to constraint that distance between particles are fixed).if i consid... | {"url":"http://www.physicsforums.com/showthread.php?t=670269","timestamp":"2014-04-17T21:25:34Z","content_type":null,"content_length":"33950","record_id":"<urn:uuid:685fd5f5-d6fc-4ede-bc18-c74a489066db>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00178-ip-10-147-4-33.ec2.internal.w... |
Report by the Institute of Marine and Antarctic Studies: Reproducing the mortality model in Neira 2011
Andrew Wadsley has made several recent statements in the media (e.g. Tasmania Times 26/8/2012) that Neira’s (2011) calculation of spawning biomass is wrong and that his results cannot be reproduced.
We have conducte... | {"url":"http://www.afma.gov.au/2012/09/report-by-the-institute-of-marine-and-antarctic-studies-reproducing-the-mortality-model-in-neira-2011/","timestamp":"2014-04-19T04:19:22Z","content_type":null,"content_length":"29491","record_id":"<urn:uuid:fd125858-c92c-4def-a008-7a810c2396c7>","cc-path":"CC-MAIN-2014-15/segments... |
State of the Art
A 222 page progress report of the COCONUT project is available as
Algorithms for Solving Nonlinear Constrained and Optimization Problems: The State of the Art
(ps.gz,699K; pdf, 2387K)
The goal of this document is to summarize the state of the art of algorithms for solving nonlinear constrained and opti... | {"url":"http://www.mat.univie.ac.at/~neum/glopt/coconut/StArt.html","timestamp":"2014-04-19T19:34:46Z","content_type":null,"content_length":"5693","record_id":"<urn:uuid:98d366e0-e298-4e5f-a545-0ad89e010528>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00250-ip-10-147-4-33.ec2.inter... |
Alternatives to the Big Bang - G.F.R. Ellis
Annu. Rev. Astron. Astrophys. 1984. 22: 157-184
Copyright © 1984 by . All rights reserved
2.5. Imlications
The discussion above makes clear the nature of the available alternatives if one is to avoid the conclusion that the Universe originates in a SHBB. One can questio... | {"url":"http://ned.ipac.caltech.edu/level5/Sept01/Ellis/Ellis2_5.html","timestamp":"2014-04-16T19:20:08Z","content_type":null,"content_length":"3048","record_id":"<urn:uuid:99fae474-32c2-4a92-a2e9-d453514d2771>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00552-ip-10-147-4-33.ec2.in... |
[FOM] Are proofs in mathematics based on sufficient evidence?
Irving ianellis at iupui.edu
Fri Jul 16 13:00:44 EDT 2010
In my previous post, I began by saying that Monroe Eskew, Michael
Barany and Vaughan Pratt raise some important, and I think related,
questions, principally historical, and in particular concerning t... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2010-July/014916.html","timestamp":"2014-04-18T18:16:17Z","content_type":null,"content_length":"9439","record_id":"<urn:uuid:39871eef-dda2-4d66-a086-ab09f03dcc61>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00517-ip-10-147-4-33.ec2.interna... |
Radius of convergence
This is just a geometric series, so we need the absolute value of the ratio, $e^{\sin(x)}$ in this case, to be less than one. So this series converges for all values of x in the set $S=\left\{x:|e^{\
sin(x)}|=e^{\sin(x)}<1\right\}$ Note that we have that $0<e^x<1$ iff $x<0$. So in our case we need... | {"url":"http://mathhelpforum.com/calculus/69423-radius-convergence.html","timestamp":"2014-04-20T18:01:36Z","content_type":null,"content_length":"40388","record_id":"<urn:uuid:c7e2b44f-5dc0-4ccd-ab6d-6911aa9a9eec>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00000-ip-10-147-4-33.ec2... |
Odd squares
May 27th 2009, 06:37 PM
Odd squares
Good night.
I have a proof question here that I needs validating. I was also wondering if I could receive alternative solutions for the question.
Thanks in advance for the help
Prove that the square of an odd integer is always of the form $8q+1$ where $q$ ... | {"url":"http://mathhelpforum.com/algebra/90759-odd-squares-print.html","timestamp":"2014-04-18T11:10:29Z","content_type":null,"content_length":"10949","record_id":"<urn:uuid:177ce272-5c10-419f-ae99-d3dd6774e09e>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00326-ip-10-147-4-33.ec2.i... |
couple problems i have
April 20th 2009, 05:54 PM #1
Apr 2009
couple problems i have
I need help with a few problems I have left.
1. Given : r = cscēΘ
how do I find the range of all possible values of r and also how do I find a Cartesian equation without fractions
2. Given : √(1+3cosēΘ(2-cosēΘ)) dΘ
... | {"url":"http://mathhelpforum.com/calculus/84737-couple-problems-i-have.html","timestamp":"2014-04-17T13:45:04Z","content_type":null,"content_length":"36807","record_id":"<urn:uuid:c33da00b-9480-457c-8c22-eaec8dc086a4>","cc-path":"CC-MAIN-2014-15/segments/1397609530131.27/warc/CC-MAIN-20140416005210-00299-ip-10-147-4-33... |
Reply to comment
Henri Poincaré died 100 years ago today.
Henri Poincaré died 100 years ago today. He is most famous for the conjecture (now theorem) which carries his name and which remained open for almost 100 years, until Grigori Perelman announced a
proof in 2003. But the conjecture isn't all there was to Poincaré.... | {"url":"http://plus.maths.org/content/comment/reply/5732","timestamp":"2014-04-21T12:21:21Z","content_type":null,"content_length":"22203","record_id":"<urn:uuid:13f0eec9-6130-445c-a061-e217ec021f78>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00501-ip-10-147-4-33.ec2.internal.warc.... |
Let {G[p1],G[p2], . . .} be an infinite sequence of graphs with G[pn] having pn vertices. This sequence is called K[p]-removable if G[p1] ≅ K[p], and G[pn] − S ≅ G[p(n−1)] for every n ≥ 2 and every
vertex subset S of G[pn] that induces a K[p]. Each graph in such a sequence has a high degree of symmetry: every way of re... | {"url":"http://opensiuc.lib.siu.edu/math_articles/39/","timestamp":"2014-04-21T10:44:23Z","content_type":null,"content_length":"20593","record_id":"<urn:uuid:03c16c71-1923-4c93-b237-5c928558249d>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00278-ip-10-147-4-33.ec2.internal.warc.gz"... |
Rowlett ACT Tutor
Find a Rowlett ACT Tutor
...ACT Math problems test reasoning skills as well as math knowledge. It can be difficult for students to finish this section in time, particularly if they’ve forgotten some math fundamentals. My
ACT Math sessions cover test-taking strategies, test practice, and review of ... | {"url":"http://www.purplemath.com/rowlett_act_tutors.php","timestamp":"2014-04-18T04:01:46Z","content_type":null,"content_length":"23480","record_id":"<urn:uuid:0ccc05a7-1619-42b3-9e04-a39ca89c9521>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00136-ip-10-147-4-33.ec2.internal.warc.... |
Tewksbury Algebra Tutor
Find a Tewksbury Algebra Tutor
I am a great Tutor. Proof is that all my three boys- now 40, 38, 30- all did very well through my tutoring in High School and beyond. I strongly believe in Life-Long Learning; that's why I applied
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Re: Identity
This one is easy:
Please use the hide tag when you get it.
Last edited by bobbym (2009-10-17 17:52:57)
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 physicists, and a good many quite respectable mathematicians are contemp... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=12735","timestamp":"2014-04-19T05:22:38Z","content_type":null,"content_length":"16368","record_id":"<urn:uuid:36bc630f-284e-4ad2-9225-42430776a552>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00649-ip-10-147-4-33.ec2.internal.wa... |