cabs man page on Ultrix

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hypot(3m)							     hypot(3m)

Name
       hypot, cabs - Euclidean distance

Syntax
       #include <math.h>

       double hypot(x,y)
       double x,y;

       double cabs(z)
       struct {double x,y;} z;

Description
       The and functions return

	      sqrt(x*x + y*y),

       taking precautions against unwarranted overflows.

Return Values
       The  and	 functions  return  HUGE_VAL and sets errno to ERANGE when the
       correct value would overflow.

Environment
       When your program is compiled using the System V	 environment,  if  the
       correct value would overflow, returns HUGE and sets errno to ERANGE.

       These error-handling procedures may be changed with the function

       The  subroutine	does not exist in the System V environment.  For sqrt,
       see

See Also
       exp(3m)

				      VAX			     hypot(3m)
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