fabs.3 (3a8617a83f16ffc9db4f96e1f0f21af94078e6b1) fabs.3 (7a15a32a17f4c2cbeb6f842c4c6b1cf93e4639e7)
1.\" Copyright (c) 1991 The Regents of the University of California.
2.\" All rights reserved.
3.\"
4.\" @(#)fabs.3 5.1 (Berkeley) 5/2/91
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

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26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31.\" SUCH DAMAGE.
32.\"
33.\" from: @(#)fabs.3 5.1 (Berkeley) 5/2/91
1.\" Copyright (c) 1991 The Regents of the University of California.
2.\" All rights reserved.
3.\"
4.\" @(#)fabs.3 5.1 (Berkeley) 5/2/91
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

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26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31.\" SUCH DAMAGE.
32.\"
33.\" from: @(#)fabs.3 5.1 (Berkeley) 5/2/91
34.\" $Id: fabs.3,v 1.4 1993/10/04 18:04:34 jtc Exp $
34.\" $Id: fabs.3,v 1.1.1.1 1994/08/19 09:39:42 jkh Exp $
35.\"
36.Dd May 2, 1991
37.Dt FABS 3
38.Os
39.Sh NAME
35.\"
36.Dd May 2, 1991
37.Dt FABS 3
38.Os
39.Sh NAME
40.Nm fabs
41.Nd floating-point absolute value function
40.Nm fabs ,
41.Nm fabsf
42.Nd floating-point absolute value functions
42.Sh SYNOPSIS
43.Fd #include <math.h>
44.Ft double
45.Fn fabs "double x"
43.Sh SYNOPSIS
44.Fd #include <math.h>
45.Ft double
46.Fn fabs "double x"
47.Ft float
48.Fn fabsf "float x"
46.Sh DESCRIPTION
47The
48.Fn fabs
49.Sh DESCRIPTION
50The
51.Fn fabs
49function computes the absolute value of a floating-point number
52and the
53.Fn fabsf
54functions compute the absolute value of a floating-point number
50.Fa x .
51.Sh RETURN VALUES
52The
53.Fn fabs
55.Fa x .
56.Sh RETURN VALUES
57The
58.Fn fabs
54function returns the absolute value of
59and the
60.Fn fabsf
61functions return the absolute value of
55.Fa x .
56.Sh SEE ALSO
57.Xr abs 3 ,
58.Xr ceil 3 ,
59.Xr floor 3 ,
60.Xr rint 3 ,
61.Xr ieee 3 ,
62.Xr math 3
63.Sh STANDARDS
64The
65.Fn fabs
66function conforms to
67.St -ansiC .
62.Fa x .
63.Sh SEE ALSO
64.Xr abs 3 ,
65.Xr ceil 3 ,
66.Xr floor 3 ,
67.Xr rint 3 ,
68.Xr ieee 3 ,
69.Xr math 3
70.Sh STANDARDS
71The
72.Fn fabs
73function conforms to
74.St -ansiC .