J. M.

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Avatar made with Mathematica 8:
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Blocky depiction of Hilbert curve, styled with Perlin noise.

E-mail (flipped ROT13): zqd˙ʎʌuzʇ@ʇɐʌǝɥʇʌssqɹǝɥɟuɹʎɔ
Any code I've posted here I place under the WTFPL.

	27,415 reputation	bio	website	tpfto.wordpress.com	visits	member for	1 year, 4 months
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5h	comment	Composition: how to make a day and night world map? Ah, I keep forgetting `Texture[]` is new in 8... yes, it would be a bit more complicated to do in version seven.
5h	comment	Composition: how to make a day and night world map? @Mr.Wizard, which function(s) aren't in version 7?
5h	comment	Smooth Kernel Distribution @Andy, since I don't have Silverman's book handy: did he also explain in his book the reason for the additional factor for multivariate data?
6h	comment	What kind of hypergeometric function is it? I knew the Unicode in this case. An easier method would be to type out the $\LaTeX$, wait for MathJax to render the Greeks, and then copy whatever MathJax is displaying.
6h	comment	CorrelationTest small bug? Please don't add the bugs tag until the behavior has been confirmed to be a bug by other people.
6h	comment	What kind of hypergeometric function is it? In that case, it doesn't seem we'll be seeing more multivariate hypergeometric functions anytime soon. All they have is one of Appell's quartet and arguably Meijer's function.
7h	comment	What kind of hypergeometric function is it? It's a Kampé de Fériet function. Unfortunately, Mathematica does not yet have support for this multivariate hypergeometric function, so I don't quite understand how they generated that Mathematica syntax.
9h	comment	How can I say that all quantities need to be positive (and real)? You've seen `Assuming[]`?
10h	comment	Are there any functions that can determine the disorder between two lists? How about saying what your real problem is?
14h	comment	Combine absolute and relative (scaled) coordinates You might want to use `Rescale[]` to transform absolute coordinates to relative coordinates that you can then use with `Scaled[]`.
19h	comment	Interpolation and points of non-differentiability You could use `Piecewise[]`'s default value; set it to `Indeterminate` instead of `0`.
22h	comment	A simple StringCases problem Another way: `StringCases[" A Vitamin D Deficiency (ICD-9-CM 268.9) (ICD-9-CM 268.9) 09/11/2015 01 ", RegularExpression["\$ICD-9-CM ((\\d\|\\.)+)\$"] :> "$1"]`
22h	comment	Manipulating plot of random iterated function system fractal @Edwin, can you be a bit more specific in what section(s) of the code are giving you difficulty? Also, did you at least try to look up functions unfamiliar to you in the docs?
23h	comment	Solar System Orbital Parameters @Sjoerd, hmm, on second glance, you're right.
1d	comment	Manipulating plot of random iterated function system fractal @Edwin, `RandomChoice[]` supports weights; look this up in the docs. So, you can still do Barnsley's fern with this approach. You also shouldn't have any difficulty modifying this to use a slider for `n` instead of the `With[{n = bignumber}, (* stuff *)]` in my code.
1d	comment	Weird vertical line when trying to plot a histogram Have you seen the `AxesOrigin` option?
1d	comment	How to draw tiles with different height? A few illustrative pictures from you might be in order...
1d	comment	Precision of a complex number That's not an answer to my question. Where did this come from? Some context would be needed.
1d	comment	Precision of a complex number Depends. Where did you get this output? Are you sure the output is supposed to be real?
1d	comment	How do I automatically “trim” the bounding box for a Graphics3D output? What happens if you add the option `Method -> {"ShrinkWrap" -> True}`?