Linux User and Programmer's Manual - Manpages
Manual pages starting with c.cabsf cabsl cabs cacosf cacoshf cacoshl cacosh cacosl cacos calloc cargf cargl carg casinf casinhf casinhl casinh casinl casin catanf catanhf catanhl catanh catanl catan catclose catgets catopen cbrtf cbrtl cbrt ccosf ccoshf ccoshl ccosh ccosl ccos ceilf ceill ceil cexpf cexpl cexp cfgetispeed cfgetospeed cfsetispeed cfsetospeed chdir chmod chown cimagf cimagl cimag clearerr clock_getcpuclockid clock_getres clock_gettime clock_nanosleep clock clock_settime clogf clogl clog closedir closelog close confstr conjf conjl conj connect copysignf copysignl copysign cosf coshf coshl cosh cosl cos cpowf cpowl cpow cprojf cprojl cproj crealf creall creal creat crypt csinf csinhf csinhl csinh csinl csin csqrtf csqrtl csqrt ctanf ctanhf ctanhl ctanh ctanl ctan ctermid ctime ctime_r