| .\" Copyright (c) 1991 The Regents of the University of California. |
| .\" All rights reserved. |
| .\" |
| .\" @(#)fabs.3 5.1 (Berkeley) 5/2/91 |
| .\" Redistribution and use in source and binary forms, with or without |
| .\" modification, are permitted provided that the following conditions |
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| .\" 2. Redistributions in binary form must reproduce the above copyright |
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| .\" This product includes software developed by the University of |
| .\" California, Berkeley and its contributors. |
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| .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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| .\" from: @(#)fabs.3 5.1 (Berkeley) 5/2/91 |
| .\" $FreeBSD: src/lib/msun/man/fabs.3,v 1.11 2004/07/01 18:20:57 ru Exp $ |
| .\" |
| .Dd October 25, 2003 |
| .Dt FABS 3 |
| .Os |
| .Sh NAME |
| .Nm fabs , |
| .Nm fabsf , |
| .Nm fabsl |
| .Nd floating-point absolute value functions |
| .Sh LIBRARY |
| .Lb libm |
| .Sh SYNOPSIS |
| .In math.h |
| .Ft double |
| .Fn fabs "double x" |
| .Ft float |
| .Fn fabsf "float x" |
| .Ft long double |
| .Fn fabsl "long double x" |
| .Sh DESCRIPTION |
| The |
| .Fn fabs , |
| .Fn fabsf |
| and |
| .Fn fabsl |
| functions compute the absolute value of a floating-point number |
| .Fa x . |
| .Sh RETURN VALUES |
| The |
| .Fn fabs , |
| .Fn fabsf |
| and |
| .Fn fabsl |
| functions return the absolute value of |
| .Fa x . |
| .Sh SEE ALSO |
| .Xr abs 3 , |
| .Xr ceil 3 , |
| .Xr floor 3 , |
| .Xr ieee 3 , |
| .Xr math 3 , |
| .Xr rint 3 |
| .Sh STANDARDS |
| The |
| .Fn fabs |
| function conforms to |
| .St -isoC . |
| The |
| .Fn fabsf |
| and |
| .Fn fabsl |
| functions conform to |
| .St -isoC-99 . |