>>>>> "Mike" == Mike Thomas <mike.thomas@brisbane.paradigmgeo.com> writes:
Mike> Hi all.
Mike> These questions may be the result of mathematical ignorance regarding Bessel
Mike> functions, but anyway...
Mike> Is it possible to evaluate Bessel functions of complex argument in Maxima?
Mike> It appears not for bessel_j as shown here, but I thought I might check with
Mike> the members of this list:
Mike> (%i68) bessel_j(0,1.0+0.01*%i);
Mike> (%o68) BESSEL_J(0, 0.01 %I + 1.0)
Mike> (%i69) bessel_j(0,1.0);
Mike> (%o69) 0.76519768655797
My apologies. I noticed this a while ago, and did some fixes, but
have not finished them and never got them into the sources. I think
it will have to wail until after 5.9.1 goes out.
All the necessary slatec routines are there to compute the desired
values---they're just not getting called by maxima.
Ray