Can someone explain why the the examples below yield a difference? IMO pow() should deliver the same result as a x*x*x*... sequence. Or not?
ksh -c 'float x y ; ((x=y=.1 , y=pow(y,4.) , x=x*x*x*x)) ; printf "%30.30f\n" x-y' -0.000000000000000000000006617444 ksh -c 'float x y ; ((x=y=.1 , y=pow(y,6.) , x=x*x*x*x*x*x)) ; printf "%30.30f\n" x-y' -0.000000000000000000000000103397 ksh -c 'float x y ; ((x=y=.1 , y=pow(y,8.) , x=x*x*x*x*x*x*x*x)) ; printf "%30.30f\n" x-y' -0.000000000000000000000000001615 Platform is Suse 12.1 on AMD64. Lionel _______________________________________________ ast-users mailing list [email protected] http://lists.research.att.com/mailman/listinfo/ast-users
