Content-type: text/html Man page of hypot

# hypot

Section: C Library Functions (3)

## NAME

hypot, cabs, fabs - Calculate Euclidean distance and absolute value

## LIBRARY

Math Library (libm.a)

## SYNOPSIS

#include <math.h>

double hypot (double x, double y); float hypotf (float x, float y); double cabs (double x, double y); float cabsf (float x, float y); double fabs (double x); float fabsf (float x);

## STANDARDS

Interfaces documented on this reference page conform to industry standards as follows:

hypot(): XPG4

fabs(): XPG4

## DESCRIPTION

The hypot() and hypotf() functions compute the length of the hypotenuse of a right triangle, where x and y represent the perpendicular sides of the triangle. The hypot(x,y) and hypotf(x,y) functions are defined as sqrt(x**2 + y**2).

The cabs() and cabsf() functions return the complex absolute value of x. The cabs() and cabsf() functions are defined as hypot() and hypotf(), respectively.

The fabs() and fabsf() functions compute the absolute value of x.

The following table describes function behavior in response to exceptional arguments:

 Function Exceptional Argument Routine Behavior hypot(), hypotf() sqrt(x**2 + y**2)>max_float Overflow cabs(), cabsf() sqrt(x**2 + y**2)>max_float Overflow

The following table lists boundary values used by these functions:
 Value Data Hexadecimal Value Decimal Value Name Type max_float S_FLOAT 7F7FFFFF 3.402823e38 T_FLOAT 7FEFFFFFFFFFFFFF 1.7976931348623e308

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## Index

NAME
LIBRARY
SYNOPSIS
STANDARDS
DESCRIPTION

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Time: 02:41:47 GMT, October 02, 2010