Whittaker functions

>    f := WhittakerW(mu+1,nu,x)/WhittakerW(mu,nu,x)/x;

f := WhittakerW(mu+1,nu,x)/WhittakerW(mu,nu,x)/x

>    pmint(f,x);

1/2*x-mu*ln(x)-ln(WhittakerW(mu,nu,x))

Maple has trouble with such integrands

>    int(f,x);

int(WhittakerW(mu+1,nu,x)/WhittakerW(mu,nu,x)/x,x)