sin / cos problem in C++

arras · Post by **arras** » Mon Apr 26, 2004 1:28 pm

May be this is simple and stupid, but when I write:
sin(90.0)
I get 0.893997 instead of 1.0

And when I write
cos(90.0)
I get -0.448074 instead of 0.0

Howe to get sin / cos to work right in C++ (I was working mostly in Basic till now)

Homer · Post by **Homer** » Mon Apr 26, 2004 2:29 pm

I think the c sin and cos functions use radiants instead of degrees, so you have to convert your values (1° = 0.01745 rad).

arras · Post by **arras** » Mon Apr 26, 2004 2:47 pm

You think right

...thanks