Reputation
57,310
Next tag badge:
139/100 score
18/20 answers
Badges
2 90 227
Newest
 bugs
Impact
~767k people reached

20m
comment Axis/Angle from rotation matrix
OK - now I can say I have seen that paper... thanks for the link! I actually learned this in a mechanics lecture many years ago. But I never knew the history.
23m
revised Animated Wave propagation using split operator method
Omitted a term that was zero anyway, but should be there for completeness
26m
comment Animated Wave propagation using split operator method
I'm pretty sure that you can get this conservation law only if you integrate over all space, not locally at every point individually. It's the continuity equation.
2h
comment How to calculate residues using different branches of the logarithm
@bbgodfrey OK, I've added an explanation.
2h
revised How to calculate residues using different branches of the logarithm
Explanation
13h
answered How to calculate residues using different branches of the logarithm
13h
comment How does Mathematica understand branchcuts of the complex logarithm?
If I understand you correctly, this is already included in my definition. You just have to change the angle $\sigma$ by $2\pi$. E.g., $\sigma=0$ and $\sigma=-2\pi$ are what I think you call continuous from above and below (I just don't think one should call this above and below because that's ambiguous for non-horizontal branch cuts).
17h
comment Wrapping text around pasted graphic
I don't think Mathematica is a good platform for such tasks because it can't properly export to PDF, doesn't properly handle bibliographies, takes undue effort to make references to equations and figures, etc. I always tell people to use LyX instead. There, you can use the wrapfig inset to solve your issue. And unlike other $\LaTeX$ frontends, LyX supports direct pasting of graphics into the document.
17h
comment Compilable function with the functionality of SingularValueList
Sure, I think there's a chance that may still give you a speed advantage. But as @Guesswhoitis. points out, SVD should probably be a last resort because it's so costly. In particular for square matrices (as you seem to have), other types of decomposition may also do what you need. That really depends on the application.
19h
comment Compilable function with the functionality of SingularValueList
No, but you can perhaps speed things up by making sure all your matrices are numerical SparseArrays. See for example this Q&A which also mentions ToPackedArray in the Developer context. The loop over $n$ matrices is most likely not the bottleneck, so compiling it won't help.
21h
reviewed Close Expand the plotting range
21h
reviewed Close First Plot misses the Show
21h
reviewed Close Matrix multiplication for higher dimensional matrices
21h
reviewed Close creation a table from a default module
1d
answered Expand a product of operators
1d
revised How to write an operator that acts on pure function (to give another pure function)
Overlooked requirement
1d
answered How to write an operator that acts on pure function (to give another pure function)
1d
comment Show a part of the output but be able to work further with the full output
This question is too broad because there are so many different types of outputs, and consequently many different ways of wrapping such outputs in short formats. Pleas give an example in actual Mathematica code to demonstrate the type of data you are generating.
1d
reviewed Close How can I import JSON object as a nested association?
1d
reviewed Close Significantly different results between Mathematica and Wolfram Alpha with large radicals and small numbers