1.\" Copyright (c) 2004 David Schultz <das@FreeBSD.org> 2.\" Copyright (c) 2026 Jesús Blázquez <jesuscblazquez@gmail.com> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.Dd April 3, 2026 27.Dt FMAXIMUM_MAG 3 28.Os 29.Sh NAME 30.Nm fmaximum_mag , 31.Nm fmaximum_magf , 32.Nm fmaximum_magl , 33.Nm fminimum_mag , 34.Nm fminimum_magf , 35.Nm fminimum_magl 36.Nd floating-point maximum and minimum magnitude functions 37.Sh LIBRARY 38.Lb libm 39.Sh SYNOPSIS 40.In math.h 41.Ft double 42.Fn fmaximum_mag "double x" "double y" 43.Ft float 44.Fn fmaximum_magf "float x" "float y" 45.Ft "long double" 46.Fn fmaximum_magl "long double x" "long double y" 47.Ft double 48.Fn fminimum_mag "double x" "double y" 49.Ft float 50.Fn fminimum_magf "float x" "float y" 51.Ft "long double" 52.Fn fminimum_magl "long double x" "long double y" 53.Sh DESCRIPTION 54The 55.Fn fmaximum_mag , 56.Fn fmaximum_magf , 57and 58.Fn fmaximum_magl 59functions determine the larger of the absolute values of 60.Fa x 61and 62.Fa y , 63and return the argument with the larger absolute value. 64If the absolute values are equal, the behavior is equivalent to calling the corresponding 65.Fn fmaximum 66function on the arguments. 67.Pp 68Likewise, the 69.Fn fminimum_mag , 70.Fn fminimum_magf , 71and 72.Fn fminimum_magl 73functions determine the smaller of the absolute values of 74.Fa x 75and 76.Fa y , 77and return the argument with the smaller absolute value. 78If the absolute values are equal, the behavior is equivalent to calling the corresponding 79.Fn fminimum 80function on the arguments. 81.Pp 82If either argument is an \*(Na, then the result is an \*(Na. 83These routines do not raise any floating-point exceptions. 84.Sh SEE ALSO 85.Xr fmax 3 , 86.Xr fmaximum 3 , 87.Xr fmaximum_mag_num 3 , 88.Xr math 3 89.Sh STANDARDS 90The 91.Fn fmaximum_mag , 92.Fn fmaximum_magf , 93.Fn fmaximum_magl , 94.Fn fminimum_mag , 95.Fn fminimum_magf , 96and 97.Fn fminimum_magl 98functions conform to 99.St -isoC-2023 . 100.Sh HISTORY 101These routines first appeared in 102.Fx 16.0 . 103