ctan(3) Library Functions Manual ctan(3) ctan, ctanf, ctanl - (libm, -lm) #include double complex ctan(double complex z); float complex ctanf(float complex z); long double complex ctanl(long double complex z); z. : ctan(z) = csin(z) / ccos(z) attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |ctan(), ctanf(), ctanl() | | MT-Safe | +----------------------------+----------------------------------------------------------+--------------------------+ C11, POSIX.1-2008. glibc 2.1. C99, POSIX.1-2001. cabs(3), catan(3), ccos(3), csin(3), complex(7) () Azamat Hackimov , Dmitriy S. Seregin , Dmitry Bolkhovskikh , Katrin Kutepova , Yuri Kozlov , Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. Linux 6.9.1 2 2024 . ctan(3)