Bessel functions?
I'm trying to find out how to implement a Bessel function. I've searched the forums and found that there is a function in JMSL, however, I cant afford it atm... does anyone know a free alternative? The equation in question is below:
Jn(K r) (C1 cos(n theta) + C2 sin(n theta))
All the best, Carl.
Thanks man, as I'm not a mathematician can you explain how the Bessel function is implemented in the patch?
Nice approximation:
https://www.cl.cam.ac.uk/~jrh13/papers/bessel.pdf
I wonder where the crucial comment with the example patch in this thread has gone?