Math
in [Science]
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The closure of the union equals the union of the closures The closure of the union equals the union of the closures: this is stated as a theorem to be proved shortly after defining the closure of a set, and I've been beating my head against the silly thing. Can anybody give me a hint in the right direction? Just how should I approach such a problem? ... 12 Jul 2010 19:38
which cubes in a 3D lattice does a line segment intersect I have a three dimensional environment partitioned into a regular grid of cubes. There's a line segment in the space as well and I'd like to know which of the cubes the line segment intersects. Is there an efficient algorithm for this? ... 10 Jul 2010 03:03
Infinite Series Help Hi - Does this infinite series have a closed form? Sum { from k = 1 to inf, (2k choose k+1) [p (1-p)]^k }. Apologies for the "non-math" format - hope you can understand it Thanks Ravi ... 9 Jul 2010 19:27
"The Universe" This is from pages i and iii of the book. __________ The Universe What It is Made of and How It Works by Gerald Lebau This book will explain what the Universe is made of and how those things interact to form everything that exists. The constructi... 10 Jul 2010 17:07
To Pee or To Not Pee: this is the question. On Jul 9, 11:30 am, "sci.math" <marty.musa...(a)gmail.com> wrote: Boo! ... 9 Jul 2010 16:06
How Can ZFC/PA do much of Math - it Can't Even Prove PA is Marshall says... On Jul 8, 8:00=A0pm, Transfer Principle <lwal...(a)lausd.net> wrote: On Jul 8, 6:15=A0pm, Marshall <marshall.spi...(a)gmail.com> wrote:. And I [don't] trust your ability to faithfully represent others' views No need to. The link is right here: http://www.math.prince... 10 Jul 2010 13:49
Conditions for Functions of Many Complex Variables to be Analytic.? bacle <here(a)here.com> writes: Could anyone please tell me the conditions for a function from C^n to C^m ( C is the complexes) to be analytic.?. I have looked thru some online sites, and they are too formal; would someone please just say something like wether we need C-Riemann to be satisfied by ea... 9 Jul 2010 14:59
Schrodinger cubic set; deriving speed of light from pure math Chapt 19 #218; ATOM TOTALITY Well, I think I can get it all from page 73 of Seaborg, Loveland's book The Elements Beyond Uranium, 1990. I think I can use just the cube with the 8 lobes inside it, where I do not even have to transform the cube into a sphere and then transform the lobes into hyperbolic geometry making that of 4 pseudosphere... 9 Jul 2010 13:53
Every problem in Computer Science can be transformed into Every Other Problem in Computer Science because they are identical <div id="cse" style="width: 100%;">Loading</div> <script src="http://www.google.com/jsapi" type="text/javascript"></ script> <script type="text/javascript"> google.load('search', '1', {language : 'en'}); google.setOnLoadCallback(function() { var customSearchControl = new google.search.CustomSearchControl... 9 Jul 2010 11:40
Norm / inner product. In a Sobolev space setting, (H^1)_0 to be precise, my book proves (using poincare' inequality) that two inner products are equivalent by proving that the norms they generate are equivalent. Why is this true, in general? I mean why does the equivalence of two norms imply the equivalence of the inner products tha... 11 Jul 2010 08:17 |