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cos, cosh

Cos calculates the cosine and cosh calculates the hyperbolic cosine of an angle.

#include <math.h>

double cos (double x);

double cosh (double x);


Angle in radians.

Return Values

The cosine or hyperbolic cosine.

cos Returns a PLOSS error if x is large and a partial loss of significance in the result occurs; function sets errno to ERANGE.

Prints a TLOSS message to stderr and returns 0 if x is so large that significance in the result is completely lost; function sets errno to ERANGE.

cosh Returns HUGE_VAL and sets errno to ERANGE if the result is too large.
Note:   This function does not return standard ANSI domain or range errors.


Versions Defined in Include Link to
INtime 3.0 intime/rt/include/math.h math.h clib.lib

See Also

acos, asin atan matherr sin tan