Borland C++ reference
Borland C++ 3.1 › <math.h>

hypot, hypotl

raw OCR

Calculates hypotenuse of a right triangle.

Defined in header <math.h>

Syntax

#include <math.h>
double  hypot(double   x, double y);
long double  hypotldong   double  x, long double y);

hypot  calculates the value z where

   z* = x* + y*

and

   2>=0

This is equivalent to the length of the hypotenuse  of a right triangle, if the
lengths of the two sides are x and y.

hyptol is the long double  version; it takes long double arguments   and
returns a long double  result.

Portability

DOSUNIXWindowsANSI CC++ only
hypot ■■■
hypofi ■■

Return value

On success, these functions return z, a double (hypot) or a long double) (hypoti). On error (such as an overflow), they set the global variable errno to

ERANGE Result out of range

and return the value HUGE_VAL(hypot) or _LHUGE_VAL)(hypoti).

Error handling for these routines can be modified through the functions matherr and _matherrl.

Example

ilnclude <stdio.h>
#include <math.h>

int main (void)
{
   double result, x = 3.(  y  = 4.
   result = hypot (x, y);
   printfC'The hypotenuse  is: Dlf\n", result)
   return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

These are search links, not yet checked by hand.

Extraction notes

  • heading `hypot, hypoti` read as `hypot, hypotl`

Stable link: /3.1/math.h/hypot/ · short form /3.1/hypot/