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Oct
28
comment GraphPlot labels overlapping
Also hackish: Mean[#1[[4 ;;]]]
Oct
28
awarded  Custodian
Oct
28
reviewed Leave Open List all possible elements of a set
Oct
26
comment ListDensityPlot crashes the kernel
Related to this I think.
Oct
26
comment How to express an expression with only ArcTan and ArcTanh?
@RunnyKine, I think the OP is looking for a generalisation of this.
Oct
26
comment Text formatting with different wrappers
It's easy to miss I think, because the text is centre aligned within itself, but the text block itself is not centred in the panel. It makes it look like an indent.
Oct
25
comment Text formatting with different wrappers
Try adding TextAlignment -> Left to the Style. I think the default for graphics is to centre text.
Oct
24
revised How to remap a fisheye image?
added 697 characters in body
Oct
24
comment Esc-esc for special characters and autocomplete in Mathematica 9
Good question. The double-bracket thing is particularly annoying.
Oct
23
comment How to remap a fisheye image?
@ErikP, I'll have another look. The asymmetry of the distortion makes it more complicated than it otherwise would be...
Oct
23
comment automatic processing of numerical results in `Plot`
This method works well if the value of y is changing slowly from step to step, for example when creating a table of values for ListPlot. However, Plot will sample the function at y values which hop around all over the place as it goes through the recursive refinement process, so I don't think this method is reliable.
Oct
22
comment Function generating a rule with a Patterns: e.g. toRule[ lhs, rhs] into lhs[x_] -> rhs
I'm sure this is a duplicate but I can't find it. For a quick fix try toRule[l_, r_] := l[x_] -> #&@ r
Oct
22
comment How to remap a fisheye image?
@ErikP, sorry - I misunderstood the aim of the remapping. This must be the highest number of upvotes I've ever had for an answer which utterly fails to answer the question!
Oct
22
awarded  Nice Answer
Oct
22
revised How to remap a fisheye image?
added 423 characters in body
Oct
22
comment Refer to next element of list when iterating using Map
Alternatively 1 + list + PadLeft[list, 4, 0, 1]
Oct
21
comment Strange Behavior when making Equal Listable in Pick
I think this is related to this question. Range gives a packed array, for which Equal has special handling which bypasses the main evaluator.
Oct
21
answered How to remap a fisheye image?
Oct
21
comment How to remap a fisheye image?
Seems to work if you evaluate f symbolically, e.g. g[{x_, y_}] = f[{x, y}]; ImageTransformation[image, g]
Oct
20
answered A one-liner to place some number of Graphics3D polytopes on a plane and to randomly assign colorations