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diff --git a/2.3-1/src/c/operations/division/zldivs.c b/2.3-1/src/c/operations/division/zldivs.c
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+/*
+ * Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
+ * Copyright (C) 2008-2008 - INRIA - Arnaud TORSET
+ *
+ * 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 "division.h"
+#include "conj.h"
+#include "multiplication.h"
+/*
+ A\B = B*A^-1 = B*conj(A)/|A|^2
+ |A|^2 = Re(A)^2 + Im(A)^2
+ */
+
+doubleComplex zldivs (doubleComplex in1, doubleComplex in2){
+ doubleComplex zC1, zC2;
+ zC1 = zmuls(in2,zconjs(in1));
+ zC2 = DoubleComplex(zreals(in1)*zreals(in1)+zimags(in1)*zimags(in1),0);
+ return zrdivs(zC1,zC2);
+}