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Active_Mathematica · Active_Mathematica_programmers_users

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Messages 2165 - 2194 of 2194   Oldest  |  < Older  |  Newer >  |  Newest
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2165 Roger L. Bagula
rlbagulatftn Offline Send Email
May 14, 2012
1:48 pm
... Subject: Four color theorem - Wikipedia, the free encyclopedia Date: Mon, 14 May 2012 06:36:10 -0700 From: Roger L. Bagula <rlbagulatftn@...> To:...
2166 aka: fuzzy
rlbagulatftn Offline Send Email
May 14, 2012
2:11 pm
Some experimentation in the mass scale gives this electron based radiation scaling with the e^2/c^2 neutrino mass limit used as the low mass. Clear[m] G =...
2167 Roger L. Bagula
rlbagulatftn Offline Send Email
May 14, 2012
3:31 pm
http://www.sciencedaily.com/releases/2012/05/120510132715.htm New Twist On Ancient Math Problem Could Improve Medicine, Microelectronics ScienceDaily (May 10,...
2168 Roger L. Bagula
rlbagulatftn Offline Send Email
May 14, 2012
6:51 pm
Roger Penrose in one of his books gave the Standard Model group as: U(1)*SU(2)*SU(3)/Z6 Thsat gave me the idea of using two cyclotomic rotational z^6-1 root...
2169 Roger L. Bagula
rlbagulatftn Offline Send Email
May 14, 2012
8:06 pm
http://www.ams.org/notices/199811/cornish.pdf Measuring the Shape of the Universe www.ams.org/notices/199811/cornish.pdf by NJ Cornish - Cited by 34 - Related...
2170 Roger L. Bagula
rlbagulatftn Offline Send Email
May 14, 2012
9:27 pm
The Weeks -Thurston hyperbolic 3 Manifolds may not mean a lot cosmologically, but they seems to give a good quantum mass scale to radius in general relativity:...
2171 Roger L. Bagula
rlbagulatftn Offline Send Email
May 15, 2012
1:13 pm
... Subject: Webinar: Physical Modeling and Simulation with MapleSim 5 Date: Mon, 14 May 2012 15:34:57 -0400 From: Maplesoft <customerservice@...>...
2172 Roger L. Bagula
rlbagulatftn Offline Send Email
May 15, 2012
2:17 pm
http://www.newsnet5.com/dpp/news/local_news/akron_canton_news/university-of-akron-mathematics-professor-teaching-course-on-casino-gambling...
2173 Roger L. Bagula
rlbagulatftn Offline Send Email
May 16, 2012
5:51 pm
http://hypertextbook.com/facts/2006/KristineMcPherson.shtml Mass of the Universe The Physics Factbook <http://hypertextbook.com/facts/>^(TM) Edited by Glenn...
2174 Roger L. Bagula
rlbagulatftn Offline Send Email
May 16, 2012
6:04 pm
The mass of an hyperbolic general relativity universe of radius 1.7*10^(28) cm: 1.1224466795462454`*^27 t^3 (1.` + 2.` Coth[t]^2 + 2.` Tanh[t]^2 - 1.5` (-1.` -...
2175 Roger L. Bagula
rlbagulatftn Offline Send Email
May 17, 2012
2:41 pm
http://en.wikipedia.org/wiki/Kerr%E2%80%93Newman_metric...
2176 Roger L. Bagula
rlbagulatftn Offline Send Email
May 17, 2012
2:46 pm
http://en.wikipedia.org/wiki/G%C3%B6del_metric...
2177 Roger L. Bagula
rlbagulatftn Offline Send Email
May 19, 2012
4:54 pm
Universe mass: m0=6*10^54 gm Universe radius: r=1.7*10^(28) As a Kerr torus mass (3d volume of torus): m0=4*Pi^2*r0^2*r Making the r0 out of the constant: ...
2178 Mats Granvik
mats.granvik Offline Send Email
May 20, 2012
10:06 am
(*program start*)Clear[nn, t, n, k]; nn = 25; t[n_, 1] = 1; t[1, k_] = 1; t[n_, k_] := t[n, k] = If[n - 1 >= k, t[n - k, k - 1], 0]; A1 = Table[Table[t[n, k],...
2179 Roger L. Bagula
rlbagulatftn Offline Send Email
May 20, 2012
2:08 pm
http://www.sciencedaily.com/releases/2012/05/120519213236.htm?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+sciencedaily+%28ScienceDaily%3A+Latest...
2180 Roger L. Bagula
rlbagulatftn Offline Send Email
May 20, 2012
2:10 pm
http://mathdl.maa.org/mathDL/?pa=mathNews&sa=view&newsId=1313 Math in the News MathDL Home A Milestone Appointment in Mathematics at Howard University This...
2181 Roger L. Bagula
rlbagulatftn Offline Send Email
May 20, 2012
2:54 pm
Mats Granvik's use of ArrayPlot where I have used ListDensityPlot ( traditionally in older versions of Mathematica) seems to show is looks like the older...
2182 Roger L. Bagula
rlbagulatftn Offline Send Email
May 20, 2012
2:57 pm
Try: Table[ListDensityPlot[ Table[Table[If [m <= n, Mod[Floor[t[n, m]], 2], 0], {m, 0, 10}], {n, 0, 10}]], {p, -1, 2, 1/48}]...
2183 Roger L. Bagula
rlbagulatftn Offline Send Email
May 20, 2012
3:01 pm
Oxytocin appears to be a legal drug: ...
2184 Mats Granvik
mats.granvik Offline Send Email
May 20, 2012
3:10 pm
I tried that. Currently I am thinking about sums of proper divisors: (*program start*)Clear[t, n, k, nn]; nn = 100; t[n_, k_] := t[n, k] = If[n >= k, If[Mod[n,...
2185 Roger L. Bagula
rlbagulatftn Offline Send Email
May 20, 2012
7:41 pm
Try: (this gives a pretty fractal dust type visualization) Clear[t] nn = 100; t[n_, k_] := t[n, k] = If[n <= k, If[Mod[k, n] == 0, k - 1, 0], 1]; ...
2186 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
1:44 pm
This result is a mathematical thought experiment. This manifold is an hyperbolic H_5 manifold which seems to check in terms of the radius. The Metric vectors...
2187 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
2:15 pm
http://www.washingtonpost.com/local/education/todays-math-vocabulary-exposes-generational-divide/2012/05/20/gIQAt6b1dU_story.html Today’s math vocabulary...
2188 Mats Granvik
mats.granvik Offline Send Email
May 21, 2012
3:29 pm
http://www.secretsofcreation.com/volume1.html (*Program start*)a[n_] := If[n < 1, 0, Sum[d MoebiusMu@d, {d, Divisors[n]}]] ListPlot[Table[a[i], {i, 1, 100}],...
2189 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
5:47 pm
Matthew Watkins taught me a lot about primes and zeta functions!...
2190 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
9:42 pm
http://reprap.org/wiki/RepRap RepRap is humanity's first general-purpose self-replicating manufacturing machine. RepRap takes the form of a free desktop 3D...
2191 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
9:50 pm
Somewhat strange math blog... http://ifwisdomwereteachable.wordpress.com/...
2192 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
9:59 pm
http://www.paultaylor.eu/ASD/ Abstract Stone Duality Paul Taylor *News (February 2011):* New research programme on /Equideductive Topology/...
2193 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
10:19 pm
Here the cyclotomic polynomials are constructed in an odd way ( only odd but including a set of even polynomials): Clear[f, d] f[d_] := (-1)^(d)*Table[If[n ==...
2194 Roger L. Bagula
rlbagulatftn Offline Send Email
May 21, 2012
11:08 pm
This line of polynomials is suggested by the D_n generator mechanism as an anti-diagonal group: Clear[g] g[d_] := (-1)^(d)* Table[If[n == d - m + 1,...
Messages 2165 - 2194 of 2194   Oldest  |  < Older  |  Newer >  |  Newest
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