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authorSandeep Gupta2017-06-18 23:55:40 +0530
committerSandeep Gupta2017-06-18 23:55:40 +0530
commitb43eccd4cffed5bd1017c5821524fb6e49202f78 (patch)
tree4c53d798252cbeae9bcf7dc9604524b20bb10f27 /2.3-1/src/c/auxiliaryFunctions/abs/cabss.c
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+/*
+ * 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 "abs.h"
+#include "sqrt.h"
+#include "max.h"
+#include "min.h"
+
+float cabss(floatComplex in) {
+ float real = sabss(creals(in));
+ float imag = sabss(cimags(in));
+ float zMax = max(real, imag);
+ float zMin = min(real, imag);
+
+ if(zMin == 0)
+ {
+ return zMax;
+ }
+ return zMax * (ssqrts(1 + (zMin / zMax) * (zMin / zMax)));
+}