-----maxima-bounces at math.utexas.edu wrote: -----
>For integrals, you can return a value of nil and this is converted to a
>noun form. ?The code for this is in function integrallookups in
>sin.lisp. Examples of usage for the first arg of Bessel functions are in
>bessel.lisp.
>I think the same happens for derivatives. ?
Thanks--this works. I knew this trick for integrals, but I didn't know it for
derivatives. With this change:
(%i20) diff(generalized_lambert_w(k,x),k);
(%o20) 'diff(generalized_lambert_w(k,x),k,1)
(%i21) integrate(generalized_lambert_w(k,x),k);
(%o21) integrate(generalized_lambert_w(k,x),k)
And all is well.
Again, thanks for the advice.