- summary: Plot leaves domain with jacobi functions --> Plot leaves range with jacobi functions
Hello,
I am working with jacobi elliptic functions with both 2d and parametric graphs and am finding they leave the domain when I use these functions under multiplication. I believe the numeric package is running out of memory or the plotter makes some similar error. How do I fix this, or how can it be fixed?
specifically try jacobi_dn()*jacobi_dn() with two frequencies (one about one tenth the other) for times exceeding 48.
This reliably causes the graph to spiral out of control and I was wondering if there was a fix.
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Thanks for this report. Please post an example in the form of specific Maxima expressions which we can use to reproduce the error. Thanks for your help. Robert Dodier
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jacobi_cn(t,.7)*jacobi_cn(.1*t,.9)
wxplot2d([%], [t,0,40])
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This is a bug in the computation of jacobi_cn. Try, eg, jacobi_cn(100,.7)
The algorithms for computing jacobi_cn and jacobi_dn need to be examined. jacobi_sn appears to be ok.
Changing category to floating point instead of plotting.
This should be fixed in CVS, ellipt.lisp, rev 1.30.
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