1 files changed, 22 insertions, 0 deletions
diff --git a/2.3-1/src/c/elementaryFunctions/tanh/ztanhs.c b/2.3-1/src/c/elementaryFunctions/tanh/ztanhs.c
new file mode 100644
index 00000000..c7a6c11d
--- /dev/null
+++ b/2.3-1/src/c/elementaryFunctions/tanh/ztanhs.c
@@ -0,0 +1,22 @@
+/*
+ *  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 "tanh.h"
+#include "tan.h"
+
+doubleComplex		ztanhs(doubleComplex z) {
+  double real = zreals(z);
+  double imag = zimags(z);
+
+  doubleComplex result = ztans(DoubleComplex(-imag, real));
+  return (DoubleComplex(zimags(result), -zreals(result)));
+}