From 3f52712f806fbd80d66dfdcaff401e5cf94dcca4 Mon Sep 17 00:00:00 2001
From: yash1112
Date: Fri, 7 Jul 2017 21:20:49 +0530
Subject: sci2c arduino updated

---
 src/c/elementaryFunctions/atanh/datanhs.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 src/c/elementaryFunctions/atanh/datanhs.c

(limited to 'src/c/elementaryFunctions/atanh/datanhs.c')

diff --git a/src/c/elementaryFunctions/atanh/datanhs.c b/src/c/elementaryFunctions/atanh/datanhs.c
new file mode 100644
index 0000000..e5eddf3
--- /dev/null
+++ b/src/c/elementaryFunctions/atanh/datanhs.c
@@ -0,0 +1,23 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2006-2008 - 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 "atanh.h"
+#include "atan.h"
+/*
+//  METHOD
+//     based on the formula  atanh(z) = i atan(-i z)
+//
+// Real case : atanh(x) = -imag(atan(-i x))
+*/
+double	       datanhs(double x) {
+  return (-zimags(zatans(DoubleComplex(0.0, -x))));
+}
-- 
cgit