.\" Copyright (c) 2004 David Schultz .\" Copyright (c) 2026 Jesús Blázquez .\" 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. .\" .Dd April 3, 2026 .Dt FMAXIMUM_MAG 3 .Os .Sh NAME .Nm fmaximum_mag , .Nm fmaximum_magf , .Nm fmaximum_magl , .Nm fminimum_mag , .Nm fminimum_magf , .Nm fminimum_magl .Nd floating-point maximum and minimum magnitude functions .Sh LIBRARY .Lb libm .Sh SYNOPSIS .In math.h .Ft double .Fn fmaximum_mag "double x" "double y" .Ft float .Fn fmaximum_magf "float x" "float y" .Ft "long double" .Fn fmaximum_magl "long double x" "long double y" .Ft double .Fn fminimum_mag "double x" "double y" .Ft float .Fn fminimum_magf "float x" "float y" .Ft "long double" .Fn fminimum_magl "long double x" "long double y" .Sh DESCRIPTION The .Fn fmaximum_mag , .Fn fmaximum_magf , and .Fn fmaximum_magl functions determine the larger of the absolute values of .Fa x and .Fa y , and return the argument with the larger absolute value. If the absolute values are equal, the behavior is equivalent to calling the corresponding .Fn fmaximum function on the arguments. .Pp Likewise, the .Fn fminimum_mag , .Fn fminimum_magf , and .Fn fminimum_magl functions determine the smaller of the absolute values of .Fa x and .Fa y , and return the argument with the smaller absolute value. If the absolute values are equal, the behavior is equivalent to calling the corresponding .Fn fminimum function on the arguments. .Pp If either argument is an \*(Na, then the result is an \*(Na. These routines do not raise any floating-point exceptions. .Sh SEE ALSO .Xr fmax 3 , .Xr fmaximum 3 , .Xr fmaximum_num 3 , .Xr math 3 .Sh STANDARDS The .Fn fmaximum_mag , .Fn fmaximum_magf , .Fn fmaximum_magl , .Fn fminimum_mag , .Fn fminimum_magf , and .Fn fminimum_magl functions conform to .St -isoC-2023 . .Sh HISTORY These routines first appeared in .Fx 16.0 .