| atan2.3 (84881) | atan2.3 (131504) |
|---|---|
| 1.\" Copyright (c) 1991 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)atan2.3 5.1 (Berkeley) 5/2/91 | 1.\" Copyright (c) 1991 The Regents of the University of California. 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" from: @(#)atan2.3 5.1 (Berkeley) 5/2/91 |
| 33.\" $FreeBSD: head/lib/msun/man/atan2.3 84881 2001-10-13 12:23:23Z bde $ | 33.\" $FreeBSD: head/lib/msun/man/atan2.3 131504 2004-07-02 23:52:20Z ru $ |
| 34.\" 35.Dd May 2, 1991 36.Dt ATAN2 3 37.Os 38.Sh NAME 39.Nm atan2 , 40.Nm atan2f 41.Nd arc tangent functions of two variables --- 98 unchanged lines hidden (view full) --- 140.if t\ 141r\(**sin\(*h. 142These equations are satisfied when (x=0,y=0) 143is mapped to 144.if n \ 145(r=0,theta=0) 146.if t \ 147(r=0,\(*h=0) | 34.\" 35.Dd May 2, 1991 36.Dt ATAN2 3 37.Os 38.Sh NAME 39.Nm atan2 , 40.Nm atan2f 41.Nd arc tangent functions of two variables --- 98 unchanged lines hidden (view full) --- 140.if t\ 141r\(**sin\(*h. 142These equations are satisfied when (x=0,y=0) 143is mapped to 144.if n \ 145(r=0,theta=0) 146.if t \ 147(r=0,\(*h=0) |
| 148on a VAX. In general, conversions to polar coordinates | 148on a VAX. 149In general, conversions to polar coordinates |
| 149should be computed thus: 150.Bd -unfilled -offset indent 151.if n \{\ 152r := hypot(x,y); ... := sqrt(x\(**x+y\(**y) 153theta := atan2(y,x). 154.\} 155.if t \{\ 156r := hypot(x,y); ... := \(sr(x\u\s82\s10\d+y\u\s82\s10\d) --- 42 unchanged lines hidden --- | 150should be computed thus: 151.Bd -unfilled -offset indent 152.if n \{\ 153r := hypot(x,y); ... := sqrt(x\(**x+y\(**y) 154theta := atan2(y,x). 155.\} 156.if t \{\ 157r := hypot(x,y); ... := \(sr(x\u\s82\s10\d+y\u\s82\s10\d) --- 42 unchanged lines hidden --- |