vlad

The modulus is not small enough. Add one 9 to make it 0.99 and the errors will increase....

Yes, that's the problem. Using jacobi_sn(u+elliptic_kc(m),m) seems to give correct...

These bug fixes and others will appear in Maxima 5.39, which should be on the horizon....

I'm sorry for the delay. No, that was just a specification for that particular implementation...

I thought I'd check and sure enough, I forgot to specify that the q(x,y) is the nome...

R(x) is the culprit, 6th line from the bottom. If declared like this: R(x) := jacobi_cd(N...

R(x) is the culprit, 6th line from the bottom. If declared like this: R(x) := jacobi_cd(N...

Jacobi elliptic functions and complex arguments