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+.\"	$OpenBSD: fmax.3,v 1.6 2025/10/14 06:30:16 jsg Exp $
+.\"
+.\" Copyright (c) 2004 David Schultz <das@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD: src/lib/msun/man/fmax.3,v 1.2 2005/01/14 09:12:05 ru Exp $
+.\"
+.Dd $Mdocdate: October 14 2025 $
+.Dt FMAX 3
+.Os
+.Sh NAME
+.Nm fmax ,
+.Nm fmaxf ,
+.Nm fmaxl ,
+.Nm fmin ,
+.Nm fminf ,
+.Nm fminl
+.Nd floating-point maximum and minimum functions
+.Sh SYNOPSIS
+.Lb libm
+.In math.h
+.Ft double
+.Fn fmax "double x" "double y"
+.Ft float
+.Fn fmaxf "float x" "float y"
+.Ft long double
+.Fn fmaxl "long double x" "long double y"
+.Ft double
+.Fn fmin "double x" "double y"
+.Ft float
+.Fn fminf "float x" "float y"
+.Ft long double
+.Fn fminl "long double x" "long double y"
+.Sh DESCRIPTION
+The
+.Fn fmax ,
+.Fn fmaxf ,
+and
+.Fn fmaxl
+functions return the larger of
+.Fa x
+and
+.Fa y ,
+and likewise the
+.Fn fmin ,
+.Fn fminf ,
+and
+.Fn fminl
+functions return the smaller of
+.Fa x
+and
+.Fa y .
+They treat
+.Li +0.0
+as being larger than
+.Li -0.0 .
+If one argument is a NaN, then the other argument is returned.
+If both arguments are NaNs, then the result is a NaN.
+These routines do not raise any floating-point exceptions.
+.Sh SEE ALSO
+.Xr fabs 3 ,
+.Xr fdim 3
+.Sh STANDARDS
+The
+.Fn fmax ,
+.Fn fmaxf ,
+.Fn fmaxl ,
+.Fn fmin ,
+.Fn fminf ,
+and
+.Fn fminl
+functions conform to
+.St -isoC-99 .
+.Sh HISTORY
+These routines first appeared in
+.Ox 4.5 .