HYPOT(2) System Calls Manual HYPOT(2)
NAME
hypot - Euclidean distance
SYNOPSIS
#include <u.h>
#include <libc.h>
double hypot(double x, double y)
DESCRIPTION
Hypot returns
sqrt(x*x + y*y)
taking precautions against unwarranted overflows.
SOURCE
/sys/src/libc/port/hypot.c
HYPOT(2)