I dont know what to do any further...
I have some function containing HeunG as a function
it is of the following form
f(k)=argument(functions containing HeunG) - ln(2)*k
now plotting this works...
But when differentiating with respect to k and then plotting it gives me the following message:
Warning, expecting only range variable k in expression (I*((1/2)^(1/2*I*k))^2*HeunG(3,-9/2+3/4*I*k-3/4*k^2,-1+1/2*I*k,-1/2+1/2*I*k,1/2,1+I*k,1/2...