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    Command:

    hypotl

    
    
    

    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);
    
           Link with -lm.
    
       Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
    
           hypot():
               _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE || _ISOC99_SOURCE ||
               _POSIX_C_SOURCE >= 200112L;
               or cc -std=c99
           hypotf(), hypotl():
               _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE >= 600 ||
               _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L;
               or cc -std=c99
    
    
    

    DESCRIPTION

           The  hypot() function returns sqrt(x*x+y*y).  This is the length of the
           hypotenuse of a right-angled triangle with sides of length x and y,  or
           the distance of the point (x,y) from the origin.
    
           The calculation is performed without undue overflow or underflow during
           the intermediate steps of the calculation.
    
    
    

    RETURN VALUE

           On success, these functions return the length of a right-angled  trian-
           gle with sides of length x and y.
    
           If x or y is an infinity, positive infinity is returned.
    
           If x or y is a NaN, and the other argument is not an infinity, a NaN is
           returned.
    
           If the result overflows, a range error occurs, and the functions return
           HUGE_VAL, HUGE_VALF, or HUGE_VALL, respectively.
    
           If  both  arguments are subnormal, and the result is subnormal, a range
           error occurs, and the correct result is returned.
    
    
    

    ERRORS

           See math_error(7) for information on how to determine whether an  error
           has occurred when calling these functions.
    
           The following errors can occur:
    
           Range error: result overflow
                  errno  is  set  to ERANGE.  An overflow floating-point exception
                  (FE_OVERFLOW) is raised.
    
                                      2010-09-20                          HYPOT(3)
    
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