On Thu, 23 Sep 2004, Luke Palmer wrote:
Edward Peschko writes:I'd say that that's a caveat of implementation, sort of a side effect of handling an error condition. By your criteria there are very few inverses - you could say that multiplication isn't an inverse of division because of zero, for example.
Err, that's funny, because mathematicians *do* say that.
Most surprisingly they will also tell you that multiplication is not a (left, right or both) inverse of division because the domain of one is not the codomain of the other and vice versa, zero or not (both are functions of *two variables).
Even more surprisingly they will tell you that "multiplication by a fixed number != 0" *is* the inverse of "division by the same number" and vice versa...
Michele -- {$_=pack'B8'x25,unpack'A8'x32,$a^=sub{pop^pop}->(map substr (($a||=join'',map--$|x$_,(unpack'w',unpack'u','G^<R<Y]*YB=' .'KYU;*EVH[.FHF2W+#"\Z*5TI/ER<Z`S(G.DZZ9OX0Z')=~/./g)x2,$_, 256),7,249);s/[^\w,]/ /g;$ \=/^J/?$/:"\r";print,redo}#JAPH,
