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1 .TH HYPOT 32 .SH NAME3 hypot \- Euclidean distance4 .SH SYNOPSIS5 .B #include <u.h>6 .br7 .B #include <libc.h>8 .PP9 .nf10 .B11 double hypot(double x, double y)12 .fi13 .SH DESCRIPTION14 .I Hypot15 returns16 .EX17 sqrt(x*x + y*y)18 .EE19 taking precautions against unwarranted overflows.20 .SH SOURCE21 .B /usr/local/plan9/src/libc/port/hypot.c