NAME

sin, cos, tan, cot, asin, acos, atan, atan2, sincos, sind, cosd, tand, cotd, asind, acosd, atand, atand2, sincosd − Trigonometric and inverse trigonometric functions in radian and degree calculations. 

LIBRARY

Math Library (libm.a)

SYNOPSIS

#include <math.h>

double sin      (double x);
float  sinf     (float  x);
double sind     (double x);
float  sindf    (float  x);
double cos      (double x);
float  cosf     (float  x);
double cosd     (double x);
float  cosdf    (float  x);
double tan      (double x);
float  tanf     (float  x);
double tand     (double x);
float  tandf    (float  x);
double cot      (double x);
float  cotf     (float  x);
double cotd     (double x);
float  cotdf    (float  x);
double asin     (double x);
float  asinf    (float  x);
double asind    (double x);
float  asindf   (float  x);
double acos     (double x);
float  acosf    (float  x);
double acosd    (double x);
float  acosdf   (float  x);
double atan     (double x);
float  atanf    (float  x);
double atand    (double x);
float  atandf   (float  x);
double atan2    (double y, double x);
float  atan2f   (float  y, float  x);
double atand2   (double y, double x);
float  atand2f  (float  y, float  x);
double_complex  sincos   (double x);
float_complex   sincosf  (float  x);
double_complex  sincosd  (double x);
float_complex   sincosdf (float  x);

DESCRIPTION

sin() and sinf() compute the sine of x, measured in radians. 

sind() and sindf() compute the sine of x, measured in degrees. 

cos() and cosf() compute the cosine of x, measured in radians. 

cosd() and cosdf() compute the cosine of x, measured in degrees. 

tan() and tanf() compute the tangent of x, measured in radians. 

tand() and tandf() compute the tangent of x, measured in degrees. 

cot() and cotf() compute the cotangent of x, measured in radians. 

cotd() and cotdf() compute the cotangent of x, measured in degrees. 

asin() and asinf() compute the principal value of the arc sine of x, in the interval [-pi/2,pi/2] radians. The value of x must be in the domain [-1,1]. 

asind() and asindf() compute the principal value of the arc sine of x, in the interval [-90,90] degrees. The value of x must be in the domain [-1,1]. 

acos() and acosf() compute the principal value of the arc cosine of x, in the interval [0,pi] radians. The value of x must be in the domain [-1,1]. 

acosd() and acosdf() compute the principal value of the arc cosine of x, in the interval [0,180] degrees. The value of x must be in the domain [-1,1]. 

atan() and atanf() compute the principal value of the arc tangent of x, in the interval [-pi/2,pi/2] radians. 

atand() and atandf() compute the principal value of the arc tangent of x, in the interval [-90,90] degrees. 

atan2() and atan2f() compute the principal value of the arc tangent of y/x, in the interval [-pi,pi] radians.  The sign of atan2() and atan2f() is determined by the sign of y. 

atand2() and atand2f() compute the principal value of the arc tangent of y/x, in the interval [-180,180] degrees.  The sign of atand2() and atand2f() is determined by the sign of y. 

sincos() and sincosf() compute the sine and cosine of x, measured in radians. 

sincosd() and sincosdf() compute the sine and cosine of x, measured in degrees. 

Double_complex and float_complex data types can only be used by languages that support them.