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Apr
15
comment How do I plot a filled cylinder in 3D?
For this particular example I would do the math and use Disk to draw an ellipse as a 2d graphic. You will get a sharper quality figure..
Apr
15
comment How to generate a random, relatively prime number to p?
just FYI the brute force approach (While[ ! CoprimeQ[n , i = RandomInteger[n]]]; i) is much faster than the "more elegant" answers..
Apr
14
comment Make a program that does union of two lists
This can be done with two sets of loops. Not sure why you needed three. Its still so ugly I'm not going to post it though
Apr
14
comment Unable to Solve (for arclength parametrization)
using the parameter s as it own limit doesn't make sense. Try Solve[ArcLength[r[s], {s, 0, smax}] == a, smax]
Apr
14
comment Bincounting multiple data
I'd guess you are after something like BinCounts[#,{min,max,space}]&/@ Table[..]
Apr
14
comment NMinimize: More parameters lead to worse results although not to be expected here
NMinimize isnt guaranteed to find a global minimum, you likely found a local minimum.
Apr
14
revised NMinimize: More parameters lead to worse results although not to be expected here
added 102 characters in body
Apr
14
revised How to draw a Circle in 3D on a sphere
deleted 3 characters in body
Apr
13
comment How to draw a Circle in 3D on a sphere
even do: EdgeForm[Red], FaceForm[Transparent] ..to actually have just a circle.
Apr
13
revised How to draw a Circle in 3D on a sphere
added 18 characters in body
Apr
13
answered How to draw a Circle in 3D on a sphere
Apr
13
comment How to draw a Circle in 3D on a sphere
I hope its ok, I took the liberty of improving the question because there are a number of good answers here..and the question appears in danger of being closed.
Apr
13
revised How to draw a Circle in 3D on a sphere
Improved question to preserve good answers.
Apr
10
comment How can I evaluate this function in Mathematica?
show what you have tried so folks can see where you are stuck. One hint, dont try to work with subscripts, define F simply like: F[ l_,w_]:= ..
Apr
10
comment Importing files into mathematica from flashdrive
overkill, but maybe useful to someone mathematica.stackexchange.com/a/45918/2079
Apr
10
comment Importing files into mathematica from flashdrive
Try SetDirectory["E:"] ( or whatever the drive letter is of course ) , then FileNames[]
Apr
10
comment Importing files into mathematica from flashdrive
windows paths look like: "E:\\MOptics\\..." (single forward slash should work as well )
Apr
10
comment Plotting with arbitrary units
likewise Ticks -> {{#, StringJoin@ {ToString@#, " a"} } & /@ Range[-2 , 2 ] in case your "unit" is not something Quantity knows
Apr
10
comment Convert Dates to values on an X axis
no need to subtract off the initial time here, if you remove that then you can do Plot[fit, {x, AbsoluteTime[{1991, 4, 1}], AbsoluteTime[{2009, 12, 12}]}] which can be directly combined with the DateListPlot
Apr
10
comment How to calculate time period?
You ought to fix this to show the result with the corrected time spec.