From: Florian Weingarten Date: 2009-12-17T22:52:53+09:00 Subject: Re: BigDecimal and BigMath Brandon Olivares wrote: > says you cannot pass a value for x that is greater than 1 or less than -1. > As far as I know, there is no such limit for the arctan. Also there is no Hi Brandon, [-1,1] is basically all you need, since arctan(x) = sgn(x) * Pi/2 - arctan(1/x) Flo