osf1 man page for hypot

hypot(3)						     Library Functions Manual							  hypot(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); long double hypotl  (long double x, long double y); double cabs
       (double x, double y); float  cabsf  (float  x, float  y); long double cabsl   (long double x, long double y);  double  fabs    (double  x);
       float  fabsf  (float  x); long double fabsl   (long double x);

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

       hypot():  XPG4

       fabs():	XPG4

       Refer to the standards(5) reference page for more information about industry standards and associated tags.

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

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

       The fabs(), fabsf(), and fabsl() 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(), hypotl()   sqrt(x**2 + y**2)>max_float   Overflow
       cabs(), cabsf(), cabsl()      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
       --------------------------------------------------------------------------

       delim off

																	  hypot(3)