cos, cosf, cosh, coshf
Calculate the cosine (cos or cosf) or hyperbolic cosine (cosh or coshf).
double cos( double x ); float cos( float x ); // C++ only long double cos( long double x ); // C++ only float cosf( float x ); double cosh( double x ); float cosh( float x ); // C++ only long double cosh( long double x ); // C++ only float coshf( float x );
Parameters
- x
-
Angle in radians.
The cosine or hyperbolic cosine of x. If x is greater than or equal to 263, or less than or equal to –263, a loss of significance in the result of a call to cos occurs.
If the result is too large in a cosh or coshf call, the function returns HUGE_VAL and sets errno to ERANGE, by default.
| Input | SEH Exception | Matherr Exception |
|---|---|---|
| ± QNAN,IND | none | _DOMAIN |
| ± ∞ (cosf, cos) | INVALID | _DOMAIN |
| x ≥ 7.104760e+002 (cosh, coshf) | INEXACT+OVERFLOW | OVERFLOW |
| Routine | Required header | Compatibility |
|---|---|---|
| cos, cosh, cosf, coshf | <math.h> | ANSI, Windows 95, Windows 98, Windows 98 Second Edition, Windows Millennium Edition, Windows NT 4.0, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 |
For additional compatibility information, see Compatibility in the Introduction.
See the example in sin, sinf, sinh, sinhf.
