a stupid problem

tuyide · Post by **tuyide** » Sun Oct 12, 2003 3:47 pm

can anybody tell me why modf(pow(216,1/double(3)),&s)=1.0?

tuyide · Post by **tuyide** » Sun Oct 12, 2003 4:10 pm

I mean that its value should be 0 instead of 1

shahriar_manzoor · Post by **shahriar_manzoor** » Mon Oct 13, 2003 3:21 am

I guess you can solve this by adding a small value

like printf("%lf",modf(pow(216,1/double(3))+1e-15,&s));

Cause is floating point error. The computer is interpreting the value as
5.999999... instead of 6

tuyide · Post by **tuyide** » Tue Oct 14, 2003 12:34 pm

Thank you for help!

OJ Board

a stupid problem

a stupid problem

Floating point error