|
Last change
on this file since 10075 was 731, checked in by tbretz, 24 years ago |
|
*** empty log message ***
|
-
Property svn:executable
set to
*
|
|
File size:
597 bytes
|
| Line | |
|---|
| 1 | #include "slalib.h"
|
|---|
| 2 | #include "slamac.h"
|
|---|
| 3 | double slaDrange ( double angle )
|
|---|
| 4 | /*
|
|---|
| 5 | ** - - - - - - - - - -
|
|---|
| 6 | ** s l a D r a n g e
|
|---|
| 7 | ** - - - - - - - - - -
|
|---|
| 8 | **
|
|---|
| 9 | ** Normalize angle into range +/- pi.
|
|---|
| 10 | **
|
|---|
| 11 | ** (double precision)
|
|---|
| 12 | **
|
|---|
| 13 | ** Given:
|
|---|
| 14 | ** angle double the angle in radians
|
|---|
| 15 | **
|
|---|
| 16 | ** The result is angle expressed in the +/- pi (double precision).
|
|---|
| 17 | **
|
|---|
| 18 | ** Defined in slamac.h: DPI, D2PI, dmod
|
|---|
| 19 | **
|
|---|
| 20 | ** Last revision: 19 March 1996
|
|---|
| 21 | **
|
|---|
| 22 | ** Copyright P.T.Wallace. All rights reserved.
|
|---|
| 23 | */
|
|---|
| 24 | {
|
|---|
| 25 | double w;
|
|---|
| 26 |
|
|---|
| 27 | w = dmod ( angle, D2PI );
|
|---|
| 28 | return ( fabs ( w ) < DPI ) ? w : w - dsign ( D2PI, angle );
|
|---|
| 29 | }
|
|---|
Note:
See
TracBrowser
for help on using the repository browser.
