ccos(3) Library Functions Manual ccos(3) ccos, ccosf, ccosl - Math library (libm, -lm) #include double complex ccos(double complex z); float complex ccosf(float complex z); long double complex ccosl(long double complex z); z. : ccos(z) = (exp(i * z) + exp(-i * z)) / 2 attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |ccos(), ccosf(), ccosl() | | MT-Safe | +----------------------------+----------------------------------------------------------+--------------------------+ C11, POSIX.1-2008. glibc 2.1. C99, POSIX.1-2001. cabs(3), cacos(3), csin(3), ctan(3), complex(7) () Azamat Hackimov , Dmitriy S. Seregin , Dmitry Bolkhovskikh , Katrin Kutepova , Yuri Kozlov , Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. Linux man-pages 6.12 23 2024 . ccos(3)