Reference

All functions
ceiling_() floor_() trunc_() round_() signif_()	Rounding of Numbers (Fast Parallel Version)
cos_() sin_() tan_() acos_() asin_() atan_() cospi_() sinpi_() tanpi_()	Trigonometric Functions (Fast Parallel Version)
log10_() log2_() log1p_() exp_() expm1_() log_()	Logarithm (Fast Parallel Version)