```fmad64(3M)							    fmad64(3M)

NAME

SYNOPSIS
DESCRIPTION
The  function  returns (x*y) + z, rounded as one ternary operation:  it
computes the value (as if) to infinite precision and rounds once to the
result format, according to the current (decimal) rounding mode.

is a version of it takes arguments and returns a result.

is a version of it takes arguments and returns a result.

These  math  functions  are supported for HP-UX 11i Version 3 September
2008 Update and forward.

USAGE
To use any of these functions, compile with the option.

Make sure your program defines and then includes

Link in the math library by specifying or on the linking command line.

RETURN VALUE
If x, y, or z is NaN, returns NaN.

If one of x and y is infinite, the other is zero, and  z	 is  not  NaN,
returns NaN and raises the invalid exception.

If  x  times  y is an exact infinity and z is also an infinity but with
the opposite sign, returns NaN and raises the invalid exception.

returns the properly signed infinity (or, in some non-default  rounding
direction  modes,  the properly signed maximum-magnitude finite number)
in lieu of a value whose magnitude is too large, and raises  the	 over‐
flow and inexact exceptions.

raises  the  underflow exception whenever a result is tiny (essentially
subnormal or zero) and inexact.

raises the inexact exception whenever a rounded result does  not	 equal
the mathematical result.

ERRORS
If  one	of  x  and y is infinite, the other is zero, and z is not NaN,
sets to

If x times y is an exact infinity and z is also an  infinity  but  with
the opposite sign, sets to

If the correct value would overflow, sets to

math(5).

STANDARDS CONFORMANCE
These  functions	 conform  to ISO/IEC TR 24732, "Extension for the pro‐
gramming language C to support decimal floating-point arithmetic".

```
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