Query: cosf
OS: opensolaris
Section: 3m
Links: opensolaris man pages all man pages
Forums: forum home forum categories
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
cos(3M) Mathematical Library Functions cos(3M)NAMEcos, cosf, cosl - cosine functionSYNOPSISc99 [ flag... ] file... -lm [ library... ] #include <math.h> double cos(double x); float cosf(float x); long double cosl(long double x);DESCRIPTIONThese functions compute the cosine of x, measured in radians.RETURN VALUESUpon successful completion, these functions return the cosine of x. If x is NaN, NaN is returned. If x is +0, 1.0 is returned. If x is +-Inf, a domain error occurs and a NaN is returned.ERRORSThese functions will fail if: Domain Error The x argument is +-Inf. If the integer expression (math_errhandling & MATH_ERREXCEPT) is non-zero, the invalid floating-point exception is raised.USAGEAn application wanting to check for exceptions should call feclearexcept(FE_ALL_EXCEPT) before calling these functions. On return, if fetestexcept(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) is non-zero, an exception has been raised. An application should either examine the return value or check the floating point exception flags to detect exceptions.ATTRIBUTESSee attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+SEE ALSOacos(3M), feclearexcept(3M), fetestexcept(3M), isnan(3M), math.h(3HEAD), sin(3M), tan(3M), attributes(5), standards(5) SunOS 5.11 12 Jul 2006 cos(3M)