Intel® C++ Compiler 16.0 User and Reference Guide
Many routines in the Intel® Math Library are more highly optimized for Intel® microprocessors than for non-Intel microprocessors.
The mathimf.h header file includes prototypes for Intel® Math Library functions.
The Intel® Math Library supports the following trigonometric functions:
Description: The acos function returns the principal value of the inverse cosine of x in the range [0, pi] radians for x in the interval [-1,1].
errno: EDOM, for |x| > 1
Calling interface:
double acos(double x);
long double acosl(long double x);
float acosf(float x);
Description: The acosd function returns the principal value of the inverse cosine of x in the range [0,180] degrees for x in the interval [-1,1].
errno: EDOM, for |x| > 1
Calling interface:
double acosd(double x);
long double acosdl(long double x);
float acosdf(float x);
Description: The asin function returns the principal value of the inverse sine of x in the range [-pi/2, +pi/2] radians for x in the interval [-1,1].
errno: EDOM, for |x| > 1
Calling interface:
double asin(double x);
long double asinl(long double x);
float asinf(float x);
Description: The asind function returns the principal value of the inverse sine of x in the range [-90,90] degrees for x in the interval [-1,1].
errno: EDOM, for |x| > 1
Calling interface:
double asind(double x);
long double asindl(long double x);
float asindf(float x);
Description: The atan function returns the principal value of the inverse tangent of x in the range [-pi/2, +pi/2] radians.
Calling interface:
double atan(double x);
long double atanl(long double x);
float atanf(float x);
Description: The atan2 function returns the principal value of the inverse tangent of y/x in the range [-pi, +pi] radians.
errno: EDOM, for x = 0 and y = 0
Calling interface:
double atan2(double y, double x);
long double atan2l(long double y, long double x);
float atan2f(float y, float x);
Description: The atand function returns the principal value of the inverse tangent of x in the range [-90,90] degrees.
Calling interface:
double atand(double x);
long double atandl(long double x);
float atandf(float x);
Description: The atan2d function returns the principal value of the inverse tangent of y/x in the range [-180, +180] degrees.
errno: EDOM, for x = 0 and y = 0.
Calling interface:
double atan2d(double x, double y);
long double atan2dl(long double x, long double y);
float atan2df(float x, float y);
Description: The cos function returns the cosine of x measured in radians.
Calling interface:
double cos(double x);
long double cosl(long double x);
float cosf(float x);
Description: The cosd function returns the cosine of x measured in degrees.
Calling interface:
double cosd(double x);
long double cosdl(long double x);
float cosdf(float x);
Description: The cot function returns the cotangent of x measured in radians.
errno: ERANGE, for overflow conditions at x = 0.
Calling interface:
double cot(double x);
long double cotl(long double x);
float cotf(float x);
Description: The cotd function returns the cotangent of x measured in degrees.
errno: ERANGE, for overflow conditions at x = 0.
Calling interface:
double cotd(double x);
long double cotdl(long double x);
float cotdf(float x);
Description: The sin function returns the sine of x measured in radians.
Calling interface:
double sin(double x);
long double sinl(long double x);
float sinf(float x);
Description: The sincos function returns both the sine and cosine of x measured in radians.
Calling interface:
void sincos(double x, double *sinval, double *cosval);
void sincosl(long double x, long double *sinval, long double *cosval);
void sincosf(float x, float *sinval, float *cosval);
Description: The sincosd function returns both the sine and cosine of x measured in degrees.
Calling interface:
void sincosd(double x, double *sinval, double *cosval);
void sincosdl(long double x, long double *sinval, long double *cosval);
void sincosdf(float x, float *sinval, float *cosval);
Description: The sind function computes the sine of x measured in degrees.
Calling interface:
double sind(double x);
long double sindl(long double x);
float sindf(float x);