Method fma

extern/half/include/half.hpp:1364–1371

Fused multiply-add implementation. \param x first operand \param y second operand \param z third operand \return \a x * \a y + \a z stored in single-precision

			/// \param z third operand
			/// \return \a x * \a y + \a z stored in single-precision
			static expr fma(float x, float y, float z)
			{
			#if HALF_ENABLE_CPP11_CMATH && defined(FP_FAST_FMAF)
				return expr(std::fma(x, y, z));
			#else
				return expr(x*y+z);
			#endif
			}

			/// Get NaN.
			/// \return Half-precision quiet NaN