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21h
comment Restrict range of Functions
Since you're solving a cubic, did you look at the discriminant already?
23h
revised NotebookAutoSave -> True “partially” working?
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1d
revised I change a single constant and the simple script suddenly takes forever to complete
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1d
revised How would one set up a conditional to evaluate at the last output value (wondrous numbers)
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1d
comment Plotting a partial sum
In particular, readers ought to notice the Gibbs ringing in the second picture…
1d
revised Plotting a partial sum
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1d
revised Plotting PV isotherms followig the Redlich Kwong equation of state
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1d
awarded  Nice Answer
2d
comment Proof bu induction?
Try asking again at math.SE. When you ask it there, make sure you've shown what you've tried.
2d
comment Time zone Projection
Still lacking. Where precisely is your timezone map and plain map? Are they in an equirectangular projection, Mercator, or something else? In any case, look up ImageCompose[].
2d
comment Expanding PolyGamma function error
@mmal, I think that the kernel couldn't handle that much recursion at that point. You may have to resort to evaluating explicit Sum[]s instead.
2d
comment $\mathbf L\mathbf D\mathbf L^\top$ Cholesky decomposition
Hi @Shutao, thank you, but let's keep that talk in the designated chatroom only. :)
2d
revised Expanding PolyGamma function error
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2d
comment Expanding PolyGamma function error
Unfortunately, I am not at a computer to test things out more fully and thus write a substantial answer; I merely guessed based on what you've shown me. What is clear is that the internal recursive implementation was not written to account for large integer arguments. I will add the bugs tag now, but let's also wait for other people to test this out.
2d
revised Legendre expansion of functions
edited tags; edited title
2d
comment Expanding PolyGamma function error
A clear bug, I think; somebody botched the recursive relation behind the scenes. Can you try Block[{$RecursionLimit = Infinity}, FunctionExpand[PolyGamma[1051/2]]]?
2d
comment Expanding PolyGamma function error
Very interesting. For reference, do you get similar errors for Gamma[] and HarmonicNumber[]?
2d
comment Calculate sum of probabilities in multinomial model
Did you know that Multinomial[] is built-in?
2d
revised Minimal overlap area of circles
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2d
comment Minimal overlap area of circles
…and you want to do this with Mathematica the software?