-----maxima-bounces at math.utexas.edu wrote: -----
>Is the suggested extension of Exponential Integrals of interest for the
project?
Yes, it is of interest. It's good when numerical evaluation works for
both complex big floats and complex doubles. Complex big float
arithmetic is slowed by the need to do rectform after every
multiplication or division.
I have a bit of code (non-CLOS) for mixed big float / double complex
numbers. It might be a starting place for a standard way to do mixed
big float / double complex arithmetic. I haven't looked at this code
for awhile and it might need a great deal of work, but let me know if
you would like a copy. Some members of this list might have similar
code that is much better than mine.
Barton