summaryrefslogtreecommitdiff
path: root/src/c/elementaryFunctions/log1p/dlog1ps.c
diff options
context:
space:
mode:
authorbaudin2010-06-04 12:56:48 +0000
committerbaudin2010-06-04 12:56:48 +0000
commitcdb84e8f913b5573da8ccef12b88ac48c09cf54e (patch)
tree9de1200a1d78501f62c894bf1a0572416605387b /src/c/elementaryFunctions/log1p/dlog1ps.c
parent44f7c2ff4af89a5802bce86c42cffd56d1a84d08 (diff)
downloadscilab2c-cdb84e8f913b5573da8ccef12b88ac48c09cf54e.tar.gz
scilab2c-cdb84e8f913b5573da8ccef12b88ac48c09cf54e.tar.bz2
scilab2c-cdb84e8f913b5573da8ccef12b88ac48c09cf54e.zip
Fixed missing copyright notice.
Diffstat (limited to 'src/c/elementaryFunctions/log1p/dlog1ps.c')
-rw-r--r--src/c/elementaryFunctions/log1p/dlog1ps.c67
1 files changed, 34 insertions, 33 deletions
diff --git a/src/c/elementaryFunctions/log1p/dlog1ps.c b/src/c/elementaryFunctions/log1p/dlog1ps.c
index 4c055c86..e75a05fd 100644
--- a/src/c/elementaryFunctions/log1p/dlog1ps.c
+++ b/src/c/elementaryFunctions/log1p/dlog1ps.c
@@ -1,33 +1,34 @@
-/*
- * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
- * Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
- *
- * This file must be used under the terms of the CeCILL.
- * This source file is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at
- * http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
- *
- */
-
-#include "log1p.h"
-#include "log.h"
-#include "lnp1m1.h"
-
-double dlog1ps(double in) {
- static double A = -1.0/3.0;
- static double B = 0.5;
-
- if(in < -1)
- {/* got NaN */
- return (in - in) / (in - in); /* NaN */
- }
- else if(A <= in && in <= B)
- {/* use the function log((1+g)/(1-g)) with g = x/(x + 2) */
- return dlnp1m1s(in / (in + 2));
- }
- else
- {/* use the standard formula */
- return dlogs(in + 1);
- }
-}
+/*
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) 2008-2008 - INRIA - Bruno JOFRET
+ * Copyright (C) Bruno Pincon
+ *
+ * This file must be used under the terms of the CeCILL.
+ * This source file is licensed as described in the file COPYING, which
+ * you should have received as part of this distribution. The terms
+ * are also available at
+ * http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
+ *
+ */
+
+#include "log1p.h"
+#include "log.h"
+#include "lnp1m1.h"
+
+double dlog1ps(double in) {
+ static double A = -1.0/3.0;
+ static double B = 0.5;
+
+ if(in < -1)
+ {/* got NaN */
+ return (in - in) / (in - in); /* NaN */
+ }
+ else if(A <= in && in <= B)
+ {/* use the function log((1+g)/(1-g)) with g = x/(x + 2) */
+ return dlnp1m1s(in / (in + 2));
+ }
+ else
+ {/* use the standard formula */
+ return dlogs(in + 1);
+ }
+}