David Joyner wrote:
> Thanks Raymond, Richard, Stavros. You are all correct about the special
> functions - I was trusting another implementation when I should have
> trusted Maxima's!
>
> Another Special functions question: Is it possible to compute
> numerically Kummer's U confluent hypergeometric
> function U(a,b,x) (also denoted $_1F_1(a,b,x)$) in maxima? It should be
> %f[1,1]([1],[1],0.5) or something (when a=b=1, x=1/2).
> I tried load("hyp") first but this didn't seem to help.
>
hyp is really only for symbolic manipulation of hypergeometrics.
I'm not aware of anything in maxima today to compute 1F1, but I think
Barton might have something.
It is on my list of things to do. :-)
Ray