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Jan
2
reviewed Reject Factor multiplied matrix with vector
Jan
2
revised What are some useful, undocumented Mathematica functions?
deleted 1 character in body
Jan
2
comment How to name a repeated pattern sequence inside Plus?
This is great. It seems like Cases[expr, _. f[a|b|c]] works, too. Any reason you can think of why it wouldn't work?
Jan
2
comment Isolating cross terms
How about you replace a->epsilon a, b->epsilon b, c->epsilon c, etc., then do a Series expansion in the denominator to first order in epsilon. Then Normal to turn it into a regular expression, and apply epsilon->1.
Jan
2
revised How to name a repeated pattern sequence inside Plus?
added 228 characters in body
Jan
2
asked How to name a repeated pattern sequence inside Plus?
Jan
1
comment Unescape Formatting in Strings
I think there is a bug in v10.2 where you first run your string so it outputs the desired fraction. Then in the output cell, place the cursor at the rightmost end, and hit spacebar. You'll get an "INTERNAL SELF-TEST ERROR" MathEditCells2|c|1412.
Dec
31
accepted Optional throws error when called from a package. Workaround?
Dec
31
revised Optional throws error when called from a package. Workaround?
added 16 characters in body
Dec
30
comment Optional throws error when called from a package. Workaround?
Oh dear... this is what I would call a catastrophic design flaw. Thanks.
Dec
30
comment Optional throws error when called from a package. Workaround?
Really? According to reference.wolfram.com/language/ref/Pattern.html, : denotes pattern name...
Dec
30
comment Optional throws error when called from a package. Workaround?
Ok, I may have found the workaround: Put the pattern name x inside the Optional like so: g[Optional[x: _,default]]. However, the fact that the former syntax doesn't throw an error in the front-end but does when called from within a package seems a bit strange...
Dec
30
asked Optional throws error when called from a package. Workaround?
Dec
30
revised Behavior of D and Derivative when acting on functions with Rules as arguments
edited title
Dec
30
comment Behavior of D and Derivative when acting on functions with Rules as arguments
@march I think you're right. Could you post an answer so I can accept?
Dec
29
answered What are some useful, undocumented Mathematica functions?
Dec
29
asked Behavior of D and Derivative when acting on functions with Rules as arguments
Dec
28
asked How to organize expression by symbols (like Collect), but apply different functions to each coefficient
Dec
27
reviewed Approve Dynamic plot with synchronization of real time
Dec
27
comment What kind of patterns in a list of rules would benefit from being Dispatched?
That is some good information about how Dispatch works. Thanks! Would you know if Dispatch boosts performance for a list of complicated rules (which have quite intricate patterns) just as much as for simple ones (like in the book)?