43,536 reputation
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bio website uoregon.edu/~noeckel
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visits member for 2 years, 6 months
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Aug
7
comment Potential hill simulation
(+1) Just a suggestion: your sphere will appear distorted if one looks closely. This is because the axes are not equally spaced in Plot3D. The way to fix this would be to include the option BoxRatios -> Automatic in Show.
Aug
7
revised Circular membrane vibration simulation
typos corrected
Aug
7
revised Circular membrane vibration simulation
Added nodal lines
Aug
7
answered Circular membrane vibration simulation
Aug
7
comment Circular membrane vibration simulation
@MichaelE2 I don't think this is precisely a duplicate because the question also requires using BesselJZero to satisfy the boundary conditions. I may try to quickly write an answer, not using 3D plot but 2D plot instead, to make it a bit more "different" from the linked question.
Aug
7
reviewed Leave Open Circular membrane vibration simulation
Aug
7
reviewed Close Creating a simple interactive app with CDF
Aug
6
comment Why does GridLines option fail with Function?
I accepted this because that's probably the best we can do - after all, it's still a bug... but now it's clearer what caused it.
Aug
6
accepted Why does GridLines option fail with Function?
Aug
6
comment Using Solve but getting no output
For a=1 the solution is easy, but for arbitrary a it isn't. So information about a would be needed.
Aug
6
comment Why does GridLines option fail with Function?
Yes, this is a work-around. I would just include Legended as an allowed Head for the plot argument, because otherwise it won't work with the PlotLegends options.
Aug
5
awarded  Enlightened
Aug
5
awarded  Nice Answer
Aug
5
comment How get eigenvectors without phase jump?
@xslittlegrass I added more details about the Bloch sphere that I mentioned earlier. In that method, I implement the same constraint as I originally stated, but without having to divide by a potentially small number.
Aug
5
revised How get eigenvectors without phase jump?
Added Bloch sphere
Aug
5
comment How get eigenvectors without phase jump?
@xslittlegrass Sure, that's one of the infinitely many alternative conditions one could require. What I did was just a choice I thought appropriate for the particular problem at hand. For eigenvectors in two-dimensional complex vector spaces one also often uses the Poincaré (or Bloch) sphere.
Aug
4
comment How to make Eigensystem in version 10 produce the same results as version 9
@acl Right - your answer to the other question (which got closed) could perhaps be combined with mine to give a canonical answer. If xslittlegrass rephrases the question to be more general maybe it could remain open to serve that purpose... (sorry I have to leave right now...)
Aug
4
reviewed Close How does Mathematica identify outliers?
Aug
4
reviewed Close How to make Eigensystem in version 10 produce the same results as version 9
Aug
4
reviewed Close Negative number modular positive number ?