Revision history [back]

summing over bessel function

Hi.

I need to sum over a bessel function K:

sum(bessel_K(0,2*PI*abs(x+k)),k,-oo,oo)

How ever I get an error:

TypeError: Cannot evaluate symbolic expression to a numeric value.

Which sounds logical. I there any way around this?

Thanks

Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.