sin(3) Library Functions Manual sin(3) sin, sinf, sinl - (libm -lm) #include double sin(double x); float sinf(float x); long double sinl(long double x); glibc ( feature_test_macros(7)): sinf() sinl(): _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L || /* Since glibc 2.19: */ _DEFAULT_SOURCE || /* glibc <= 2.19: */ _BSD_SOURCE || _SVID_SOURCE x x . x. x (NaN) NaN. x NaN ( ). math_error(7) . : : x errno EDOM ( BUGS). (FE_INVALID). attributes(7). +------------+------------------------------------+--------------------+ || | | +------------+------------------------------------+--------------------+ |sin(), | | MT-Safe | |sinf(), | | | |sinl() | | | +------------+------------------------------------+--------------------+ C11, POSIX.1-2008. C99 POSIX.1-2001. double SVr4 4.3BSD C89. glibc 2.10 glibc errno EDOM . acos(3) asin(3) atan(3) atan2(3) cos(3) csin(3) sincos(3) tan(3) 3 . . : . 6.18 8 2026 sin(3)