factorial...

[Dik T. Winter]

In article <1991Feb06.072529.21092 at convex.com> bobm at convex.com (Bob Miller) writes:
 > I spent a little time optimizing and vectorizing, and for sufficiently
 > large numbers, I can multiply a decimal digit-pair every 15
 > picoseconds (!).  "Sufficiently large" means > 1e36000.
 > 
Let me guess, Schoenhage?, Fourier transform?
--
dik t. winter, cwi, amsterdam, nederland
dik at cwi.nl