1*05a0b428SJohn Marino.\" $OpenBSD: sqrt.3,v 1.16 2013/07/17 05:42:11 schwarze Exp $ 2*05a0b428SJohn Marino.\" Copyright (c) 1985, 1991 Regents of the University of California. 3*05a0b428SJohn Marino.\" All rights reserved. 4*05a0b428SJohn Marino.\" 5*05a0b428SJohn Marino.\" Redistribution and use in source and binary forms, with or without 6*05a0b428SJohn Marino.\" modification, are permitted provided that the following conditions 7*05a0b428SJohn Marino.\" are met: 8*05a0b428SJohn Marino.\" 1. Redistributions of source code must retain the above copyright 9*05a0b428SJohn Marino.\" notice, this list of conditions and the following disclaimer. 10*05a0b428SJohn Marino.\" 2. Redistributions in binary form must reproduce the above copyright 11*05a0b428SJohn Marino.\" notice, this list of conditions and the following disclaimer in the 12*05a0b428SJohn Marino.\" documentation and/or other materials provided with the distribution. 13*05a0b428SJohn Marino.\" 3. Neither the name of the University nor the names of its contributors 14*05a0b428SJohn Marino.\" may be used to endorse or promote products derived from this software 15*05a0b428SJohn Marino.\" without specific prior written permission. 16*05a0b428SJohn Marino.\" 17*05a0b428SJohn Marino.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18*05a0b428SJohn Marino.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19*05a0b428SJohn Marino.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20*05a0b428SJohn Marino.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21*05a0b428SJohn Marino.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22*05a0b428SJohn Marino.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23*05a0b428SJohn Marino.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24*05a0b428SJohn Marino.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25*05a0b428SJohn Marino.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26*05a0b428SJohn Marino.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27*05a0b428SJohn Marino.\" SUCH DAMAGE. 28*05a0b428SJohn Marino.\" 29*05a0b428SJohn Marino.\" from: @(#)sqrt.3 6.4 (Berkeley) 5/6/91 30*05a0b428SJohn Marino.\" 31*05a0b428SJohn Marino.Dd $Mdocdate: July 17 2013 $ 32*05a0b428SJohn Marino.Dt SQRT 3 33*05a0b428SJohn Marino.Os 34*05a0b428SJohn Marino.Sh NAME 35*05a0b428SJohn Marino.Nm cbrt , 36*05a0b428SJohn Marino.Nm cbrtf , 37*05a0b428SJohn Marino.Nm cbrtl , 38*05a0b428SJohn Marino.Nm sqrt , 39*05a0b428SJohn Marino.Nm sqrtf , 40*05a0b428SJohn Marino.Nm sqrtl 41*05a0b428SJohn Marino.Nd cube root and square root functions 42*05a0b428SJohn Marino.Sh SYNOPSIS 43*05a0b428SJohn Marino.In math.h 44*05a0b428SJohn Marino.Ft double 45*05a0b428SJohn Marino.Fn cbrt "double x" 46*05a0b428SJohn Marino.Ft float 47*05a0b428SJohn Marino.Fn cbrtf "float x" 48*05a0b428SJohn Marino.Ft long double 49*05a0b428SJohn Marino.Fn cbrtl "long double x" 50*05a0b428SJohn Marino.Ft double 51*05a0b428SJohn Marino.Fn sqrt "double x" 52*05a0b428SJohn Marino.Ft float 53*05a0b428SJohn Marino.Fn sqrtf "float x" 54*05a0b428SJohn Marino.Ft long double 55*05a0b428SJohn Marino.Fn sqrtl "long double x" 56*05a0b428SJohn Marino.Sh DESCRIPTION 57*05a0b428SJohn MarinoThe 58*05a0b428SJohn Marino.Fn cbrt 59*05a0b428SJohn Marinofunction computes the cube root of 60*05a0b428SJohn Marino.Ar x . 61*05a0b428SJohn MarinoThe 62*05a0b428SJohn Marino.Fn cbrtf 63*05a0b428SJohn Marinofunction is a single precision version of 64*05a0b428SJohn Marino.Fn cbrt . 65*05a0b428SJohn MarinoThe 66*05a0b428SJohn Marino.Fn cbrtl 67*05a0b428SJohn Marinofunction is an extended precision version of 68*05a0b428SJohn Marino.Fn cbrt . 69*05a0b428SJohn Marino.Pp 70*05a0b428SJohn MarinoThe 71*05a0b428SJohn Marino.Fn sqrt 72*05a0b428SJohn Marinofunction computes 73*05a0b428SJohn Marinothe non-negative square root of x. 74*05a0b428SJohn MarinoThe 75*05a0b428SJohn Marino.Fn sqrtf 76*05a0b428SJohn Marinofunction is a single precision version of 77*05a0b428SJohn Marino.Fn sqrt . 78*05a0b428SJohn MarinoThe 79*05a0b428SJohn Marino.Fn sqrtl 80*05a0b428SJohn Marinofunction is an extended precision version of 81*05a0b428SJohn Marino.Fn sqrt . 82*05a0b428SJohn Marino.Sh RETURN VALUES 83*05a0b428SJohn MarinoIf x is negative, 84*05a0b428SJohn Marino.Fn sqrt "x" , 85*05a0b428SJohn Marino.Fn sqrtf "x" 86*05a0b428SJohn Marinoand 87*05a0b428SJohn Marino.Fn sqrtl "x" 88*05a0b428SJohn Marinoset the global variable 89*05a0b428SJohn Marino.Va errno 90*05a0b428SJohn Marinoto EDOM. 91*05a0b428SJohn Marino.Sh HISTORY 92*05a0b428SJohn MarinoA 93*05a0b428SJohn Marino.Fn sqrt 94*05a0b428SJohn Marinofunction first appeared in 95*05a0b428SJohn Marino.At v3 . 96*05a0b428SJohn Marino.Pp 97*05a0b428SJohn MarinoThe 98*05a0b428SJohn Marino.Fn cbrt 99*05a0b428SJohn Marinofunction appeared in 100*05a0b428SJohn Marino.Bx 4.3 . 101