Arabbit.380
net.math
utzoo!decvax!ucbvax!ihnss!mhtsa!alice!rabbit!ark
Sat Mar 13 11:16:01 1982
Re: log0 query
Be careful not to confuse

	lim  log(x)
	x->0

with log(0).  Log(0) is undefined, but there is a perfectly legitimate
and rigorous meaning to saying that, for instance

	lim  log(x) = -infinity
	x->0

The meaning is that by making x as small as you like, you can make
log(x) as large a negative number as you like.  (read "small" to
mean "close to zero").  This meaning can be defined without ever
having to admit that there is such a number as "infinity".