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 Yearling
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~3k people reached

  • 0 posts edited
  • 0 helpful flags
  • 32 votes cast
Jul
1
comment How to change the position of the PlotLabel?
also: 1 and 2
Jun
19
comment How to save the current configuration of preferences?
If you are on windows, I think the preference is in C:\Users\[your_user_name]\AppData\Roaming\Mathematica\FrontEnd\init.m
Jun
1
comment plotting sine of a wiener process and calculating derivative
FWIW, data = RandomFunction[WienerProcess[.3, .5], {0, 1, 0.01}]; g[{a_, b_}] := {a, Sin[b]}; ds = Flatten[Normal[data], 1]; dg = Table[{i*.01, (ds[[i + 1, 2]] - ds[[i, 2]])/.01}, {i, 1, 100}]; ListLinePlot[g /@ ds] ListLinePlot[dg]
Jun
1
comment ContourPlot has weird Jagged line
maybe just let the code with big PlotPoints run for several hours? ContourPlot[ p == q (1 + (2 (1 + 3 (p - q)^2) (.1))/(1 - (p - q)^2)^3), {p, -3, 3}, {q, -3, 3}, PlotPoints -> 600, PlotRange -> All, Exclusions -> True] gives smooth result in my testing. You can also try playing with MaxRecursion a bit.
May
27
comment Update/refresh notebook variable color on clear
Works like a charm for me :-) Thanks! (tested on Mathematica ver. 10.0.2.0 on windows)
May
27
accepted Update/refresh notebook variable color on clear
May
27
asked Update/refresh notebook variable color on clear
May
19
comment plot randomly oriented lines
Do you want the the planes to be discrete,for example random integer zs? Because with float random numbers of @LLlAMnYP 's comment, it's highly, highly unlikely that two lines will end up in the same plane.
Mar
27
answered DensityPlot and KroneckerDelta
Mar
25
comment How to find out where an error occurs?
@Alireza Before evaluating.
Mar
24
awarded  Yearling
Mar
24
comment How to find out where an error occurs?
@Szabolcs Thanks for the tip!
Mar
24
comment How to find out where an error occurs?
Try the built-in debugger: Evaluation>Debugger with Break at messages checked.
Mar
24
answered How to find out where an error occurs?
Mar
23
answered Delete data were y = “NS” in a list with elements {x, y}
Mar
23
comment How could I add the WorldMap skin to this parametricPlot3d?
also the example here
Mar
23
comment How could I add the WorldMap skin to this parametricPlot3d?
refer to this post
Mar
23
comment Is there a bug in MatrixExp in Mathematica v10?
Confirmed the issue in ver.10. For your example specifically, since the matrix can be exactly diagonalized using Eigensystem, you can get a nice analytic expression--I'm assuming it's used in quantum mechanics where the matrix is the Hamiltonian (easily diagonalized in your example) and you want the unitary propagator with MatrixExp.
Mar
20
revised ReadList and ToExpression
added 154 characters in body
Mar
20
revised ReadList and ToExpression
added 80 characters in body