NAME

hypot − Euclidean distance

SYNOPSIS

#include <math.h>

double hypot(x, y)
double x, y;

DESCRIPTION

hypot() returns

sqrt(x∗x + y∗y) ,

taking precautions against unwarranted IEEE exceptions.  On IEEE overflow, hypot() may also set errno and call matherr(3M).  hypot(±∞, y) is +∞ for any y, even a NaN, and is exceptional only for a signaling NaN. 

hypot(x,y) and atan2(3M) convert rectangular coordinates (x,y) to polar (r,θ); hypot() computes r, the modulus or radius.

SEE ALSO

matherr(3M)

Sun Release 4.0  —  Last change: 22 November 1987