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Active_Mathematica · Active_Mathematica_programmers_users

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Messages 1899 - 1928 of 2194   Oldest  |  < Older  |  Newer >  |  Newest
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1899 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 1, 2012
8:58 pm
What is strange about this tubelines projection is that the result is like a cube with a polar sphere projected on it. The mesh comes up curved... Clear[x, y,...
1900 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 2, 2012
8:35 pm
This program of Beziers from vetrices of the Icosahedron comes from trying to think of ways to get functions that are "like" a Dodecaherdon or Icosahedron. I...
1901 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 2, 2012
9:10 pm
With a little scaling problem the same code works for a Dodecahedron... It looks like a two hole torus in the middle?...
1902 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 3, 2012
9:26 pm
http://users.physik.fu-berlin.de/~kleinert/ic/ Discovery of Quasicrystals; Icosahedral Phase The existence of quasicrystals in an icosahedral phase was first...
1903 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 3, 2012
9:58 pm
I'm having real trouble getting the models of these up but the pictures work fine. They look better without the polyhedron frames. This one appears to be genus...
1904 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 4, 2012
2:42 am
Last night I was reading about entropy and the relationship it has to binary uncertainty. Today I derived from log expansions the binary uncertainty term like...
1905 Mats Granvik
mats.granvik Offline Send Email
Feb 4, 2012
3:32 pm
I tried your code. Heike's code on stackoverflow does some interestingthings with constant array inputs {0, 0.5,0, 0.5,0, 0.5,0, 0.5,0, 0.5,0, 0.5 ... and so...
1906 Mats Granvik
mats.granvik Offline Send Email
Feb 4, 2012
3:33 pm
I posted a question on math stackexchange:http://math.stackexchange.com/questions/105628/what-are-the-exact-values-of-the-local-minima-in-this-spectrum To:...
1907 Mats Granvik
mats.granvik Offline Send Email
Feb 4, 2012
3:34 pm
I am posting to code here too. This time I have added verticallines at x-values equal to imaginary part of the the first few Riemann zeta zeros. Notice the...
1908 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 4, 2012
3:56 pm
If the Zeta Zero and the conjugate root are complex roots outside the unit disk, as order three real Pisots there is a third real root: ...
1909 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 4, 2012
4:28 pm
The graph does work well here, but I can see it with an error message. It was a typo. The graph looks like a stock market "saturation" curve. Alternative...
1910 Mats Granvik
mats.granvik Offline Send Email
Feb 4, 2012
5:34 pm
Ok, thanks. I am bit surprised that it didn't get any attention atmath stackexchange. I added a few more zeta zeros: (*Mathematica 8 start*)Clear[f] scale =...
1911 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 4, 2012
5:54 pm
The entropy idea suggests that the saturation is: http://en.wikipedia.org/wiki/Einstein_solid Just a very rough scaling to the Heat capacity: ( Bosons) ...
1912 Mats Granvik
mats.granvik Offline Send Email
Feb 4, 2012
9:43 pm
I will look into that and see if I understand anything. To: Active_Mathematica@yahoogroups.com From: rlbagula@... Date: Sat, 4 Feb 2012 09:54:08...
1913 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 5, 2012
4:58 pm
This effort is to get something like the Mats Granvik ringing sigmoid plot for the zeta zeros. g[x_] = -x^2/(Cosh[x]*Cos[x*(1 + Prime[Floor[1 +...
1914 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 5, 2012
9:37 pm
http://demonstrations.wolfram.com/BuckyballInIcosahedron/...
1915 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 6, 2012
4:27 pm
http://www.forbes.com/sites/martinsosnoff/2012/02/02/is-apple-the-next-polaroid/print/ Forbes Martin Sosnoff Martin Sosnoff, Contributor I am an active money...
1916 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 7, 2012
7:02 pm
http://www.bbc.co.uk/news/technology-16907104 6 February 2012 Last updated at 09:07 ET Transplant jaw made by 3D printer claimed as first 3D-printed jaw A...
1917 Mats Granvik
mats.granvik Offline Send Email
Feb 10, 2012
10:50 am
I posted this on math se:http://math.stackexchange.com/questions/107483/are-these-zeros-equal-to-the-imaginary-part-of-the-riemann-zeta-zeros (*Mathematica 8*)...
1918 Roger Bagula
rlbagulatftn Offline Send Email
Feb 10, 2012
2:50 pm
Mats Granvik You are getting more roots than than just the Zeta Zeros. What are the others? Both literally what are they in numbers and what do they mean? ...
1919 Mats Granvik
mats.granvik Offline Send Email
Feb 10, 2012
2:57 pm
I don't know, good question. As we see every other root is different from the zeta zeros.I tried in one plot adding the golden ratio for the very first root....
1920 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 10, 2012
4:09 pm
http://www.bbc.co.uk/news/technology-16926868 7 February 2012 Last updated at 10:51 ET Wolfram Alpha unveils premium 'Pro' analysis service Wolfram Alpha pro...
1921 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 10, 2012
4:59 pm
http://ej.iop.org/images/1367-2630/10/5/053029/Full/nj272495fig3.jpg I had thought some of these trajectories looked familiar. I discovered last night that...
1922 Roger Bagula
rlbagulatftn Offline Send Email
Feb 11, 2012
3:17 pm
The decimation product comes from derivatives of matrix polynomials. ( owes a lot to the factorial and gamma function) f[n_] = Product[(-i)^(1/(i - 1)), {i, 2,...
1923 Roger Bagula
rlbagulatftn Offline Send Email
Feb 13, 2012
1:32 am
This took some experimentation to get a 3d visualization that looked like anything. The idea is that there is a decimation equivalent to combinations. Clear[f,...
1924 Roger Bagula
rlbagulatftn Offline Send Email
Feb 13, 2012
2:28 pm
http://en.wikipedia.org/wiki/Molien_series...
1925 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 13, 2012
4:16 pm
http://library.wolfram.com/infocenter/MathSource/5087/ Wolfram <http://www.wolfram.com/> PRODUCTS <http://www.wolfram.com/products/> SOLUTIONS...
1926 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 13, 2012
10:49 pm
http://d-shape.com/ The 21st century revolution in building technology has a name. D-Shape. The mega scale free-form printer of buildings. What couldn't be...
1927 Roger L. Bagula
rlbagulatftn Offline Send Email
Feb 14, 2012
2:14 pm
https://docs.google.com/viewer?a=v&q=cache:pR0XxWBfCmgJ:www.unk.edu/uploadedFiles/facstaff/profiles/willisb/eigens-by-row(1).pdf+William+A.+McWorter&hl=en&pid=...
1928 Roger Bagula
rlbagulatftn Offline Send Email
Feb 14, 2012
9:57 pm
I am just excited that I got a rational equation of the general kind we had been talking about that behaves like quarks, but in a very unexpected way. In this...
Messages 1899 - 1928 of 2194   Oldest  |  < Older  |  Newer >  |  Newest
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