From d54fe7c1f704a63824c5bfa0ece65245572e9b27 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Wed, 4 Mar 2015 21:21:30 -0500
Subject: Initial commit

---
 src/slalib/dranrm.f | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 src/slalib/dranrm.f

(limited to 'src/slalib/dranrm.f')

diff --git a/src/slalib/dranrm.f b/src/slalib/dranrm.f
new file mode 100644
index 0000000..ee9af25
--- /dev/null
+++ b/src/slalib/dranrm.f
@@ -0,0 +1,31 @@
+      DOUBLE PRECISION FUNCTION sla_DRANRM (ANGLE)
+*+
+*     - - - - - - -
+*      D R A N R M
+*     - - - - - - -
+*
+*  Normalize angle into range 0-2 pi  (double precision)
+*
+*  Given:
+*     ANGLE     dp      the angle in radians
+*
+*  The result is ANGLE expressed in the range 0-2 pi (double
+*  precision).
+*
+*  P.T.Wallace   Starlink   23 November 1995
+*
+*  Copyright (C) 1995 Rutherford Appleton Laboratory
+*-
+
+      IMPLICIT NONE
+
+      DOUBLE PRECISION ANGLE
+
+      DOUBLE PRECISION D2PI
+      PARAMETER (D2PI=6.283185307179586476925286766559D0)
+
+
+      sla_DRANRM=MOD(ANGLE,D2PI)
+      IF (sla_DRANRM.LT.0D0) sla_DRANRM=sla_DRANRM+D2PI
+
+      END
-- 
cgit