================================== Top new questions this week: ==================================
[many indefinite integrals do not evaluate in 10.1, looking for the cause] http://mathematica.stackexchange.com/questions/79367/many-indefinite-integrals-do-not-evaluate-in-10-1-looking-for-the-cause
Many integrals no longer evaluate in V 10.1 when they did in 10.0.2
Here are some 23 integrals as an example, that all produced results in V 10.0.2, but now all returns unevaluated!
I am hoping ...
- asked by Nasser (19 votes)
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[Why does a comma insert a line break in a comment?] http://mathematica.stackexchange.com/questions/79463/why-does-a-comma-insert-a-line-break-in-a-comment
I like to include capital letters and punctuation in my comments. But when I put a comma into a Mathematica comment of the (* ... *) type, it usually causes the comment line to break, with a new line ...
- asked by Ralph Dratman (17 votes), answered by sacratus (7 votes)
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[Why do lookup times in Dataset and Association differ by orders of magnitude?] http://mathematica.stackexchange.com/questions/79522/why-do-lookup-times-in-dataset-and-association-differ-by-orders-of-magnitude
Consider the following three data structures: a list of rules, an association, and a dataset:
n = 1000000; list = (ToString[#] -> #) & /@ Range[n]; assoc = Association@list; dataset = ...
- asked by verse (14 votes), answered by WReach (10 votes)
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[How to get the directory of a package?] http://mathematica.stackexchange.com/questions/79510/how-to-get-the-directory-of-a-package
I have a package that I have placed in the $BaseDirectory
Applications directory so that Needs can find it. I have a logo in the directory that I will
return when a function is called. However, when ...
- asked by Edmund (10 votes), answered by Szabolcs (10 votes)
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[RegionPlot returning a number] http://mathematica.stackexchange.com/questions/79572/regionplot-returning-a-number
Introduced in 10.0, persists in 10.1.
I had updated my mathematica to version 10 few days ago. And I had been shocked by the following fact:
s = FunctionInterpolation[Sin[x], x, 0, 1]; ...
- asked by WateSoyan (10 votes)
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[Why does Plot try symbolic values?] http://mathematica.stackexchange.com/questions/79573/why-does-plot-try-symbolic-values
I have the following code:
Test[a_] := (Print[a]; a*2) Plot[Test[a], {a, 0, 10}, PlotPoints -> 5, MaxRecursion -> 0]
This should plot a*2 for five points between a = 0 and a = 10, and print ...
- asked by Matthew (10 votes), answered by Simon Woods (9 votes)
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[Most efficient way of making pair list from a list] http://mathematica.stackexchange.com/questions/79622/most-efficient-way-of-making-pair-list-from-a-list
I have a bunch of datasets which looks like:
3 7 1 6 5 8 2 4 1 2 8 1 5 2 5 ...
and I need to make a list of pairs such that the first element makes a pair with other elements in the same line.
3 7 ...
- asked by Mahdi (9 votes), answered by Kuba (11 votes)
================================== Greatest hits from previous weeks: ==================================
[List of compilable functions] http://mathematica.stackexchange.com/questions/1096/list-of-compilable-functions
Is there somewhere a list on the functions that Compile can compile, or the cases in which a particular function can be compiled that I haven’t found? I’d be glad even with a list of some of them ...
- asked by Rojo (83 votes), answered by Oleksandr R. (92 votes)
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[How to use Mathematica functions in Python programs?] http://mathematica.stackexchange.com/questions/4643/how-to-use-mathematica-functions-in-python-programs
I’d like to know how can I call Mathematica functions from Python.
I appreciate a example, for example, using the Mathematica function Prime.
I had search about MathLink but how to use it in Python ...
- asked by GarouDan (29 votes), answered by GarouDan (11 votes)
================================== Can you answer these? ==================================
[Strange Integrate messages $RecursionLimit being ignored] http://mathematica.stackexchange.com/questions/79801/strange-integrate-messages-recursionlimit-being-ignored
Introduced in 10.1.0
The following behavior was observed in Mathematica 10.1 (Windows 64 bit)
When attempting to evaluate the following integral, Mathematica outputs several messages which appear ...
- asked by Nick (2 votes)
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[ListConvolve Memory Hemorrhage] http://mathematica.stackexchange.com/questions/79340/listconvolve-memory-hemorrhage
I wrote a routine that convolves an impulse response array with a test array and checks for the RMS difference between that convolution and a data array. I do this iteratively so that I can modify the ...
- asked by A. McEvoy (6 votes)
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[SystemException[MemoryAllocationFailure] with Memoized function] http://mathematica.stackexchange.com/questions/79378/systemexceptionmemoryallocationfailure-with-memoized-function
Version 10.1 Win7x64 Enterprise.
This is more of a report than a question but others may have seen the same / have insights.
I have some code (that I can’t really post as it’s too big) with a large ...
- asked by Ymareth (1 vote)