Seth Woolley's Man Viewer

SQRT(3)                    Linux Programmer's Manual                   SQRT(3)



NAME
       sqrt, sqrtf, sqrtl - square root function

SYNOPSIS
       #include <math.h>

       double sqrt(double x);

       float sqrtf(float x);

       long double sqrtl(long double x);

       Link with -lm.

DESCRIPTION
       The  sqrt()  function  returns  the  non-negative square root of x.  It
       fails and sets errno to EDOM, if(3,n) x is negative.

ERRORS
       EDOM   x is negative.

CONFORMING TO
       SVID 3, POSIX, BSD 4.3, ISO 9899.  The float and the long double  vari-
       ants are C99 requirements.

SEE ALSO
       hypot(3)



                                  2002-07-27                           SQRT(3)