Correction... On 12/28/2010 3:00 PM, Jim Graham wrote: > math. (Though it begs the question - is "-q/sqrt(-p^3)" more accurate > than "-q/(p*sqrt(-p)"? If p is < 1 then the cube is an even smaller > number, does that matter?) Make that "-q/(-p*sqrt(-p))", or "q/(p*sqrt(-p))"... ...jim