cabs(3) Library Functions Manual cabs(3) cabs, cabsf, cabsl - (libm, -lm) #include double cabs(double complex z); float cabsf(float complex z); long double cabsl(long double complex z); z. . attributes(7). +----------------------------+----------------------------------------------------------+--------------------------+ | | | | +----------------------------+----------------------------------------------------------+--------------------------+ |cabs(), cabsf(), cabsl() | | MT-Safe | +----------------------------+----------------------------------------------------------+--------------------------+ C11, POSIX.1-2008. glibc 2.1. C99, POSIX.1-2001. hypot(a, b) ( sqrt(a*a + b*b)). abs(3), cimag(3), hypot(3), complex(7) () Azamat Hackimov , Dmitriy S. Seregin , Dmitry Bolkhovskikh , Katrin Kutepova , Yuri Kozlov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () . Linux man-pages 6.18 8 2026 . cabs(3)