1 files changed, 31 insertions, 0 deletions
diff --git a/2.3-1/src/c/auxiliaryFunctions/abs/zabss.c b/2.3-1/src/c/auxiliaryFunctions/abs/zabss.c
new file mode 100644
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--- /dev/null
+++ b/2.3-1/src/c/auxiliaryFunctions/abs/zabss.c
@@ -0,0 +1,31 @@
+/*
+ *  Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ *  Copyright (C) 2007-2008 - 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 <math.h>
+
+#include "abs.h"
+#include "sqrt.h"
+#include "max.h"
+#include "min.h"
+
+double zabss(doubleComplex in) {
+  double real = dabss(zreals(in));
+  double imag = dabss(zimags(in));
+  double zMax = max(real, imag);
+  double zMin = min(real, imag);
+
+  if(zMin == 0)
+    {
+      return zMax;
+    }
+  return zMax * (dsqrts(1 + (zMin / zMax) * (zMin / zMax)));
+}