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    The following form allows you to view linux man pages.

    Command:

    fma

    
    
    

    SYNOPSIS

           #include <math.h>
    
           double fma(double x, double y, double z);
           float fmaf(float x, float y, float z);
           long double fmal(long double x, long double y, long double z);
    
           Link with -lm.
    
       Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
    
           fma(), fmaf(), fmal():
               _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE ||
               _POSIX_C_SOURCE >= 200112L;
               or cc -std=c99
    
    
    

    DESCRIPTION

           The fma() function computes x * y + z.  The result is  rounded  as  one
           ternary operation according to the current rounding mode (see fenv(3)).
    
    
    

    RETURN VALUE

           These functions return the value of x * y + z, rounded as  one  ternary
           operation.
    
           If x or y is a NaN, a NaN is returned.
    
           If  x times y is an exact infinity, and z is an infinity with the oppo-
           site sign, a domain error occurs, and a NaN is returned.
    
           If one of x or y is an infinity, the other is 0, and z is not a NaN,  a
           domain error occurs, and a NaN is returned.
    
           If  one of x or y is an infinity, and the other is 0, and z is a NaN, a
           domain error occurs, and a NaN is returned.
    
           If x times y is not an infinity times zero (or vice versa), and z is  a
           NaN, a NaN is returned.
    
           If the result overflows, a range error occurs, and an infinity with the
           correct sign is returned.
    
           If the result underflows, a range error  occurs,  and  a  signed  0  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:
    
           Domain error: x * y + z, or x * y is invalid and z is not a NaN
                  An invalid floating-point exception (FE_INVALID) is raised.
    
           The fma(), fmaf(), and fmal() functions are thread-safe.
    
    
    

    CONFORMING TO

           C99, POSIX.1-2001.
    
    
    

    SEE ALSO

           remainder(3), remquo(3)
    
                                      2013-09-17                            FMA(3)
    
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