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Mar
31
comment NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
@skrat. In case you missed the edit to my answer I got the matrix method to work (a1 converges to 0.00884556)
Mar
31
revised NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
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Mar
31
revised NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
added 515 characters in body
Mar
31
revised NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
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Mar
30
revised NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
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Mar
30
revised NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
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Mar
30
answered NDSolve and matrix formulation do not produce the same result. Why and which is more precise?
Mar
29
revised Probability of distance of two random points in the unit circle
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Mar
29
comment Probability of distance of two random points in the unit circle
looks spot on..
Mar
29
revised Probability of distance of two random points in the unit circle
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Mar
29
answered Probability of distance of two random points in the unit circle
Mar
29
comment Envelope of a given table (or plot)
related mathematica.stackexchange.com/questions/2350/…
Mar
29
answered How cut any integer number?
Mar
29
comment problem in solving equation
Look at MatrixForm[(a.b - b.a)] and MatrixForm[(2 I c f)], you can see by inspection there is no f to make them equal.
Mar
29
comment problem in solving equation
I pasted the code in for you. You get no solution because there is no solution.
Mar
29
revised problem in solving equation
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Mar
29
comment How to ListContourPlot a functional eigenvalue spectrum?
@J.M. not so for this example. Actually those spurious bands are in the region where there are complex eigenvalues. I guess not worth worrying about since its a toy example.
Mar
29
revised How to ListContourPlot a functional eigenvalue spectrum?
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Mar
29
answered How to ListContourPlot a functional eigenvalue spectrum?
Mar
28
comment How to ListContourPlot a functional eigenvalue spectrum?
does a contour represent the locus where "any" eigenvalue is equal to some specified value? As noted your first example is not a documented usage and its not really clear what its doing.