Math
in [Science]
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An exact 1-D integration challenge - 67 - (erf, sqrt, arcsin) Hello, Mathematica: Integrate[Erf[ArcSin[z]]/Sqrt[1 + z], {z, 0, 1}] Maple: int(erf(arcsin(z))/sqrt(1 + z), z= 0..1); ? Cheers, Vladimir Bondarenko Co-founder, CEO, Mathematical Director http://www.cybertester.com/ Cyber Tester Ltd. -----------------------------------------... 4 Aug 2010 04:56
RAVEN1 - "You want me to post the VIN before you post your guess, that's idiotic!" In a bizarre twist Raven demonstrates that HE is the Ravin' lunatic! Or at least a few electrons short of a full valence shell. I can't cheat Raven even if you post the VIN first! This MD5 of my guess GUARANTEES my guess is fixed, so looking at the VIN won't help me. 911aeaf1914cc70a46fd2a65cd97efd7 ... 6 Aug 2010 21:29
free products with amalgamation Hi! I'd like to continue the discussion "(Amalgamated) free products" http://groups.google.com/group/sci.math/browse_thread/thread/1e2f1eb7837500ee/8a5632049d3a78e8?lnk=gst&q=free+product#8a5632049d3a78e8 Let G=A *_C B be the amalgamated free product of groups. Suppose N is a normal subgroup of B intersecting... 4 Aug 2010 21:16
Relativistic "Doppler" shift, and why bp hates cap&trade derivatives [*], if they do. on the wayside, let me anull the notion that Einstein could not have come-up with that proof of pythag., because it is so monumentally elementary, although Hippocrates lunes proof is not presented in the Euclid version, insofar as I know. * http://tarpley.net/ thus: so, what is your hypothesis as to the mec... 3 Aug 2010 18:04
Why is sugar sweet, and why does bp hate cap&trade derivatives [*], if so? so, what is your hypothesis as to the mechanism, percieved a sweetness -- *o* said, Let'em eat sweet? * http://tarpley.net/ The sugar cartel have engineered it to be desirable so that the --les ducs d'oil! http://tarpley.net/online-books/ --Light, A History! http://wlym.com/~animations/fermat/index.ht... 4 Aug 2010 07:04
Centralizers in topological groups Dear members, Let G be a topological (Hausdorff) group. Let H be an "abstract" subgroup of G (i.e., not neceessary closed, open, ...) and let K denote its topological closure in G. Is it true that C_G(H) is contained in C_G(K)? What about normalizers? I'm sorry if these are too stupid questions. Best wishes, ... 3 Aug 2010 19:09
How small must the chance of error be before we accept something as true and certain? In article <pan.2010.08.03.17.39.18.115194(a)nowhere.com>, nobody(a)nowhere.com says... On Mon, 02 Aug 2010 17:15:56 -0700, Immortalist wrote: Suppose, for the sake of argument, that a belief could be completely justified without all chance of error being excluded. How great a chance of error is... 3 Aug 2010 14:45
How small must the chance of error be before we accept something as true and certain? On Mon, 02 Aug 2010 17:15:56 -0700, Immortalist wrote: Suppose, for the sake of argument, that a belief could be completely justified without all chance of error being excluded. How great a chance of error is to be allowed? One chance in ten? One chance in a million? It depends entirely on how severe are... 3 Aug 2010 13:39
Is Eisenstein all powerful? Prove or disprove: If f in Z[x] with deg(f) > 1 is irreducible then there exists g in Z[x] with deg(g) >= 1 such that the polynomial f(g(x)) is irreducible by the Eisenstein criterion. quasi ... 11 Aug 2010 13:39
would neutrinos be already coded digit messages rather than photons #262 Atom Totality #33 Brain Locus theory Helmut Wabnig wrote: On Mon, 2 Aug 2010 22:46:26 -0700 (PDT), Archimedes Plutonium <plutonium.archimedes(a)gmail.com> wrote: I know the entire body acts as an antennae to form a crystal radio but does the DNA act as an antennae? An atenna = 1 antennae = more than 1 Here are ... 3 Aug 2010 11:27 |