# Integration of cosh ( bessel function )

1. Dec 22, 2008

### chaosoul

Hi,

I am working on the derivation of an equation on electrokinetic flow in microfluidic.

I am stuck at a point that need me to do an integration in the form of

r * cosh (Io(r))

where r = variable to be integrated
I0 = zero order modified bessel function of the first kind

Is there any standard solution for this type of integration?