include/box2d/b2_math.h
void Set(float angle)
	{
		/// TODO_ERIN optimize
		s = sinf(angle);
		c = cosf(angle);
	}
/// Set using an angle in radians.
Set using an angle in radians.
Set using an angle in radians .
void Set(float angle)
	{
		s = sinf(angle);
		c = cosf(angle);
	}
void Set ( float angle ) { s = sinf ( angle ) ; c = cosf ( angle ) ; }
Set using an angle in radians.
Set using an angle in radians .
/// TODO_ERIN optimize