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