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diff --git a/src/c/operations/includes/multiplication.h b/src/c/operations/includes/multiplication.h
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+/*
+ *  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
+ *
+ */
+
+#ifndef __MULTIPLICATION_H__
+#define __MULTIPLICATION_H__
+
+#include "dynlib_operations.h"
+#include "floatComplex.h"
+#include "doubleComplex.h"
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+/*
+**
+** WARNING WE ASSUME MATRIXES TO BE CONSCISTENT
+** size1 = size2;
+**
+*/
+
+/*
+** \brief Compute a multiplication with floats.
+** \param in1 : input float.
+** \param in2 : input float.
+** \return : in1 * in 2 = in1 .* in2.
+*/
+EXTERN_OPERATIONS float	smuls(float in1, float in2);
+
+/*
+** \brief Compute a multiplication element ways for floats.
+** \param in1 : input array.
+** \param in2 : input array.
+** \param size : size of in2 array.
+** \param out : array that contains the multiplication  = in1 .* in2.
+*/
+EXTERN_OPERATIONS void	smula(float *in1,  float *in2, int size2, float *out);
+
+/*
+** \brief Compute a multiplication with double.
+** \param in1 : input double.
+** \param in2 : input double.
+** \return : in1 * in 2 = in1 .* in2.
+*/
+EXTERN_OPERATIONS double	dmuls(double in1, double in2);
+
+/*
+** \brief Compute a multiplication element ways for double.
+** \param in1 : input array.
+** \param in2 : input array.
+** \param size : size of in2 array.
+** \param out : array that contains the multiplication  = in1 .* in2.
+*/
+EXTERN_OPERATIONS void	dmula(double *in1, double *in2, int size,double * out);
+
+/*
+** \brief Compute a multiplication with floats Complex.
+** \param in1 : input float complex.
+** \param in2 : input float complex.
+** \return : in1 * in 2 = in1 .* in2.
+*/
+EXTERN_OPERATIONS floatComplex	cmuls(floatComplex in1, floatComplex in2);
+
+/*
+** \brief Compute a multiplication element ways for complex single precision.
+** \param in1 : input array.
+** \param in2 : input array.
+** \param size : size of in2 array.
+** \param out : array that contains the multiplication  = in1 .* in2.
+*/
+EXTERN_OPERATIONS void	cmula(floatComplex *in1, floatComplex *in2, int size, floatComplex *out);
+
+/*
+** \brief Compute a multiplication with double complex.
+** \param in1 : input double complex.
+** \param in2 : input double conplex.
+** \return : in1 * in 2 = in1 .* in2.
+*/
+EXTERN_OPERATIONS doubleComplex	zmuls(doubleComplex in1, doubleComplex in2);
+
+/*
+** \brief Compute a multiplication element ways for complex double precision.
+** \param in1 : input array.
+** \param in2 : input array.
+** \param size: size of in2 array.
+** \param out : array that contains the multiplication  = in1 .* in2.
+*/
+EXTERN_OPERATIONS void	zmula(doubleComplex *in1, doubleComplex *in2, int size, doubleComplex *out);
+
+
+/*
+** \function ctimess
+** \brief Multiply 2 Complex numbers.
+*/
+EXTERN_OPERATIONS floatComplex ctimess(floatComplex z1, floatComplex z2);
+
+/*
+** \function ztimess
+** \brief Multiply 2 Complex numbers.
+*/
+EXTERN_OPERATIONS doubleComplex ztimess(doubleComplex z1, doubleComplex z2);
+
+#ifdef  __cplusplus
+} /* extern "C" */
+#endif
+
+#endif /* !__MULTIPLICATION_H__ */