[net.lang.lisp] Lisp's amazing math

davy (12/18/82)

#N:pur-ee:6400001:000:854
pur-ee!davy    Dec 17 11:01:00 1982


	This is probably a dumb question, but I'm just now trying to learn
	lisp.  I was playing with the "fact" command a while back, and 
	discovered that you can do fun things like take the factorial of
	500, 1000, or even 10000 (if you don't mind a number that's 76 BLOCKS
	long!).

	Anyway, my question is this:

		How does lisp (we run Franz) do this?  Those numbers are
	obviously slightly higher than a VAX can count, even using unsigned
	integers.  Does it play with characters, or use an approximation, 
	or what?

		Also, if someone could send me a brief description of just
	what a "Lisp Machine" is, I'd sure appreciate it.

	Since I'm sure no one really cares about the answers to these two
	questions, please MAIL your answers to:

			decvax!pur-ee!davy
			ucbvax!pur-ee!davy
			ihnss!pur-ee!davy
			harpo!pur-ee!davy


--Dave Curry
pur-ee!davy