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2d
revised Need an efficient way to do this list manipulation
added 121 characters in body
2d
revised Need an efficient way to do this list manipulation
added 27 characters in body
2d
revised Need an efficient way to do this list manipulation
added 129 characters in body
2d
answered Need an efficient way to do this list manipulation
2d
answered How do I solve for one variable in terms of other variables in Mathematica?
Jul
28
comment Using select to pick out elements of nested lists in an odd way
This does it: Cases[{{{A, B}, {A, D}}, {{C, D}, {A, A}, {H, A}}, {{A, H}}}, {___, {A, _}, ___, {A, _}, ___}]
Jul
28
accepted Which function definition is used to evaluate an expression that matches the lefthand side of more than one definition?
Jul
27
asked Which function definition is used to evaluate an expression that matches the lefthand side of more than one definition?
Jul
6
comment How to avoid plotting lines not defined in a Which function?
Use option: Exclusions -> None
Jul
2
awarded  Curious
Jun
11
comment Determine Functions Given Data Points
The constant function f[x,y]=0 contains those solution, and is found by mathematica using InterpolatingPolynomial: InterpolatingPolynomial[{{{0, 0.5}, 0}, {{1, 0.5}, 0}, {{0.6, 0.8}, 0}, {{0.4, 0.2}, 0}}, {x, y}]
May
10
accepted Checkbox behaving weird when variables are local
May
10
asked Checkbox behaving weird when variables are local
Apr
27
comment Evaluate differentiation after replacement
With[{y=replacement},D[y,x]]
Apr
16
answered Recover data points from RGBColor of known ColorScheme
Apr
16
comment Recover data points from RGBColor of known ColorScheme
I think the the Export[] function makes this irreversible. However, if you can figure the inverse function of your colorfunction, you could extract the z values from a new densityplot of the function z[x_,y_]=InverseColorFunction[imagedata[[x,y]]]
Apr
16
answered Sorting a table of vectors with weights
Apr
10
accepted What does LinearModelFit depend on except for its' arguments?
Apr
8
revised What does LinearModelFit depend on except for its' arguments?
edited title
Apr
8
asked What does LinearModelFit depend on except for its' arguments?