https://groups.google.com/d/forum/sci.mathsci.mathMathematical discussions and pursuits.Google GroupsJoe Genteel2015-03-06T03:02:17Zhttps://groups.google.com/d/topic/sci.math/4yijCdQe8QUN-Body Problem Numerical Simulation Question-The n-body problem has been solved for n=3 by Sundman and for n>3 by Wang. Both solution methods involve infinite series that supposedly converge extremely slowly, and the slow convergence is said to prevent any practical application of these methods (roundoff error, etc.). But has there beenArchimedes Plutonium2015-03-05T22:32:40Zhttps://groups.google.com/d/topic/sci.math/KHZx_K5H0NQExplaining how the integral counts cells and sums cell's areas; Mystery of innate x=0 leftward boundaryExplaining how the integral counts cells and sums cell's areas; Mystery of innate x=0 leftward boundary As I said, I am going slow on this, for students learning Calculus for the first time deserve a slow approach. In this post I discovered the Integer Grid and I think I should do the High SchoIV2015-03-05T21:48:55Zhttps://groups.google.com/d/topic/sci.math/i-Yu0AwH0ZAWhich class of functions of this expressions of rational functions?Hallo, simplified spoken for introduction: I have two correlated expressions of rational or non-rational functions under the integral sign. I want to know for which classes of functions the expressions give rational or non-rational functions. Take the definition of elementary functions fromAgapito Martinez2015-03-05T20:37:13Zhttps://groups.google.com/d/topic/sci.math/XoPK0-2S_2MSimple recursion questionLet's say function f(n,m+), m>0, is primitive recursive. How do we prove that f(n,m) is recursive as well? Many thanks, AgapitoWM2015-03-05T17:50:30Zhttps://groups.google.com/d/topic/sci.math/yYzqPupVPLMA question on induction.By induction we can prove for all natural numbers n: 1 + 2 + 3 + ... n = n(n+1)/2 If the natural numbers obeying this rule are removed from the sequence 1, 2, 3, ... of all natural numbers: What remains? Regards, WMRick Hue2015-03-05T16:13:57Zhttps://groups.google.com/d/topic/sci.math/3-_NgcPqkfQPachauri head of IPCC quits Climate Changehttp://www.breitbart.com/london/2015/02/25/pachauris-resignation-from-the-ipcc-was-at-least-five-years-overdue/ It’s momentous because the IPCC is one of the world’s most powerful organisations, with presidents and prime ministers across the globe in thrall to its prognostications of climate dooArchimedes Plutonium2015-03-05T09:33:00Zhttps://groups.google.com/d/topic/sci.math/PnitzUb6TtsRon Bruck, please lend another helping hand on this computer question -- successive halving factorialRon, I suppose I did not thank you enough for the recent computer help on .295! and its features. But I need one more data collection on a hybrid fractional factorial below. It is easy to set up and takes little computer time. Please help me get that data. First I want to thank both rtoff andWilliam Elliot2015-03-05T09:10:52Zhttps://groups.google.com/d/topic/sci.math/v5GWXW511iYAdditive ClosureAn ordinal eta, is additively closed when for all mu, nu < eta. mu + nu < eta. Is an ordinal eta, additively closed iff eta is a cardinal or there's some mu with eta = mu^omega.mitchell...@ge.com2015-03-04T16:23:24Zhttps://groups.google.com/d/topic/sci.math/epemOomaYNsIntegralHi, Could anyone help me with the following integration? find Integral of cos(x) * sqrt(4-3(cos(x))^2) Thanks for any advice, Mitch.Jürgen R.2015-03-04T16:18:13Zhttps://groups.google.com/d/topic/sci.math/2m-VrWc_k80Lesson #9 for Muecke MueckenheimLesson #9 Good Manners and Intellectual Honesty Mathematical arguments that use undefined terms are gibberish. It is a question of simple politeness to explain what the words mean that one uses, as soon as there is any chance that they can be misconstrued. Anybody who refuses to define his cloverm...@gmail.com2015-03-04T15:36:34Zhttps://groups.google.com/d/topic/sci.math/t33obXde694Number facts1. The word 'hundrath' in Old Norse, from which our 'hundred' derives, meant not 100 but 120. 2. 3435 - A Münchhausen Number has the property that the sum of its digits raised to themselves produces the original number. The only Münchhausen Number are 1 and 3435 (3435 = 3^3 + 4^4 + 3^3 + 5^5)sperm...@yahoo.com2015-03-04T13:02:58Zhttps://groups.google.com/d/topic/sci.math/jgKzy4E06dcA 1 by 1 triangle is a contradiction in terms-thus maths ends in meaninglessnessit is shown a triangle that has sides equal to 1 unit long, the diagonal of the square is equal to the square root of 2 is a contradiction in terms and means mathematics ends in meaninglessness https://www.scribd.com/doc/40697621/Mathematics-Ends-in-Meaninglessness-ie-self-contradiction "Charlie-Boo2015-03-04T12:45:32Zhttps://groups.google.com/d/topic/sci.math/Hk7QHjy19gAFinding Duplicates in Limited Space: An Important Practical Logic ProblemI have a program that maps any integer from 1 to a million into a character string of 1000 characters. I have space to hold only a million characters of storage. I can keep only 1000 of the strings in memory at a time. I want to list all of these strings but only once each. How can I do thisPentcho Valev2015-03-04T07:45:15Zhttps://groups.google.com/d/topic/sci.math/qb0r9VFPNBYHERBERT DINGLE'S UNANSWERED QUESTIONhttp://www.fourmilab.ch/etexts/einstein/specrel/www/ ON THE ELECTRODYNAMICS OF MOVING BODIES, A. Einstein, 1905: "From this there ensues the following peculiar consequence. If at the points A and B of K there are stationary clocks which, viewed in the stationary system, are synchronous; and ifArchimedes Plutonium2015-03-03T23:38:20Zhttps://groups.google.com/d/topic/sci.math/Aj9O2PUVgrQChat: on the possible "kink" in the fabric of Permutation theory Re: pure algebra proof infinity borderAlright, this enquiry stems from my recent data set of this: 290 6.03161*10^589 6.03161*10^-571 291 1.75520*10^592 1.75520*10^-572 292 5.12518*10^594 5.12518*10^-574 293 1.50168*10^597 1.50168*10^-575 294 4.41493*10^599 4.41493*10^-577 295 1.30241*10^602 1.30241*10^-57