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diff --git a/2.3-1/src/c/matrixOperations/includes/infiniteNorm.h b/2.3-1/src/c/matrixOperations/includes/infiniteNorm.h
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+/*
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) 2008-2008 - INRIA - Allan SIMON
+ *
+ * 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
+ *
+ */
+
+#ifndef __INFINITENORM_H__
+#define __INFINITENORM_H__
+
+#include "dynlib_matrixoperations.h"
+#include "sign.h" 
+#include "pythag.h"
+#include "floatComplex.h"
+#include "doubleComplex.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+/*
+** \brief Compute the infinite norm of a given floats matrix.
+** \param in : input matrix.
+** \param _iRows : number of rows of the matrix .
+** \param _iCols : number of columns of the matrix .
+*/
+
+EXTERN_MATOPS float  sinfnorma(float* in, int _iRows, int _iCols);
+
+/*
+** \brief Compute the infinite norm of a given doubles matrix.
+** \param in : input matrix.
+** \param leadDimIn : the leading dimension of the matrix .
+** \param out : the matrix inverse of the input .
+*/
+
+EXTERN_MATOPS double dinfnorma(double* in, int _iRows, int _iCols);
+
+/*
+** \brief Compute the infinite norm of a given complex floats  matrix.
+** \param in : input matrix.
+** \param _iRows : number of rows of the matrix .
+** \param _iCols : number of columns of the matrix .
+*/
+
+EXTERN_MATOPS float  cinfnorma(floatComplex* in, int _iRows, int _iCols);
+
+/*
+** \brief Compute the infinite norm of a given complex doubles matrix.
+** \param in : input matrix.
+** \param _iRows : number of rows of the matrix .
+** \param _iCols : number of columns of the matrix .
+*/
+
+EXTERN_MATOPS double zinfnorma(doubleComplex* in, int _iRows, int _iCols);
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* !__INFINITENORM_H__ */
+