On Wed, 05 Oct 2011 at 12:40AM -0500, Jason Grout wrote: > On 10/4/11 11:14 PM, Mike Hansen wrote: > >On Tue, Oct 4, 2011 at 9:09 PM, Dan Drake<[email protected]> wrote: > >>It seems unreasonably annoying to plot a bunch of Bessel functions > >>together. How can I work around this? > > > >This is due to the way binding works in list comprehensions. For a > >good explanation and workaround, see > >http://stackoverflow.com/questions/139819/why-results-of-map-and-list-comprehension-are-different > > In particular, this is one way to do it: > > sage: f0, f1 = [lambda x,n=n: bessel_J(n, x) for n in [0,1]] > sage: f0(0) > 1.00000000000000
Thanks Mike and Jason. (And Andrzej for the simple workaround I should have thought of...) The "lambda x,n=n:" looks weird, but the Stackoverflow page explained it well enough. Dan -- --- Dan Drake ----- http://mathsci.kaist.ac.kr/~drake -------
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