[sage-support] Re: numerical integration of bessel_J functions

2009-11-02 Thread svanshaar
Thanks Jason! That works perfectly. --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://grou

[sage-support] numerical integration of bessel_J functions

2009-10-29 Thread svanshaar
I am trying to numerically evaluate the integral of bessel functions. I've tried constructing it various ways. The one that makes most sense to me is: a=var('a') f=bessel_J(1,a)*bessel_J(0,0.1*a)*e^(-5*a) f.numerical_integral(a,0,infinity) I get the error: Cannot evaluate symbolic expression to