Matriplex::internal Namespace Reference

Functions
template<typename T >
void	sincos4 (const T x, T &sin, T &cos)

Function Documentation

sincos4()

template<typename T >

void Matriplex::internal::sincos4	(	const T	x,
		T &	sin,
		T &	cos
	)

Definition at line 104 of file MatriplexCommon.h.

References Matriplex::cos(), Matriplex::sin(), and x.

Referenced by Matriplex::__attribute__().

                                            {
      // Had this writen with explicit division by factorial.
      // The *whole* fitting test ran like 2.5% slower on MIC, sigh.

      const T x2 = x * x;
      cos = T(1.0) - T(0.5) * x2 + T(0.0416666666666666667) * x2 * x2;
      sin = x - T(0.166666666666666667) * x * x2;
    }