Is there a typo in your description? g(x,y) is not defined. Do you mean g(n+1)=f(n,n-1)?
----- Original Message ----- From: John Randall <[EMAIL PROTECTED]> Date: Friday, December 8, 2006 9:56 am Subject: Re: [Jgeneral] exp(y). sin(y) and accuracy. > While we are talking about numerical precision, here is a simple > example which illustrates some pitfalls of floating-point arithmetic. > There are no transcendental functions here, just - and % . > > Let f(x,y)=108-(815-1500%y)%x and let g(n+1)=g(n,n-1), with g(0)=4, > g(1)=4.25. > > Then g(n)->L as n goes to infinity. The question is, what is L? Or > even what is g(80)? [Hint: neither of these is 100.] ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
