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diff --git a/2.3-1/src/c/signalProcessing/ell1mag/dell1maga.c b/2.3-1/src/c/signalProcessing/ell1mag/dell1maga.c
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+++ b/2.3-1/src/c/signalProcessing/ell1mag/dell1maga.c
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+/* Copyright (C) 2017 - IIT Bombay - FOSSEE
+
+ 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
+ Author: Ankit Raj
+ Organization: FOSSEE, IIT Bombay
+ Email: toolbox@scilab.in
+ */
+
+#include<stdio.h>
+#include "modsn.h"
+#include "ell1mag.h"
+#include "doubleComplex.h"
+
+void dell1maga(double eps,double m1,double* z,int size,double* oup )
+{
+ double s[size];
+ int i;
+ for(i=0;i<size;i++)
+ {
+ s[i]=zmodsns(z[i],m1);
+ }
+ double un[size];
+ int j;
+ for(j=0;j<size;j++)
+ {
+ un[j]=1;
+ }
+ double v;
+ int k;
+ for(k=0;k<size;k++)
+ {
+ v=un[k]/(un[k]+(eps*eps*s[k]*s[k]));
+ oup[k]=v;
+ }
+}
+