HP-UX Floating-Point Guide

Appendix A 205
The C Math Library
C Math Library Tables
Table A-2 The C Math Library (Alphabetical Listing)
Function What It Does
double acos(double x); Returns arccosine of x in radians.
(Millicode version available)
double acosd(double x); Returns arccosine of x in degrees.
float acosdf(float x); Returns arccosine of x in degrees.
float acosf(float x); Returns arccosine of x in radians.
double acosh(double x); Returns inverse hyperbolic cosine of x.
double asin(double x); Returns arcsine of x in radians. (Millicode
version available)
double asind(double x); Returns arcsine of x in degrees.
float asindf(float x); Returns arcsine of x in degrees.
float asinf(float x); Returns arcsine of x in radians.
double asinh(double x); Returns inverse hyperbolic sine of x.
double atan(double x); Returns arctangent of x in radians.
(Millicode version available)
double atand(double x); Returns arctangent of x in degrees.
float atandf(float x); Returns arctangent of x in degrees.
float atanf(float x); Returns arctangent of x in radians.
double atanh(double x); Returns inverse hyperbolic tangent of x.
double atan2(double y, double x); Returns arctangent of y/x in radians.
(Millicode version available)
double atan2d(double y, double x); Returns arctangent of y/x in degrees.
float atan2df(float y, float x); Returns arctangent of y/x in degrees.
float atan2f(float y, float x); Returns arctangent of y/x in radians.
double cbrt(double x); Returns cube root of x.
float cbrtf(float x); Returns cube root of x.