Moving source code

1 files changed, 43 insertions, 0 deletions

diff --git a/src/c/matrixOperations/hilbert/dhilba.c b/src/c/matrixOperations/hilbert/dhilba.c
new file mode 100644
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--- /dev/null
+++ b/src/c/matrixOperations/hilbert/dhilba.c
@@ -0,0 +1,43 @@
+/*
+ *  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
+ *
+ */
+
+#include "hilbert.h"
+
+void dhilba ( double* out, int size ){
+    
+  	int iIndex1		= 0;
+	int iIndex2		= 0;
+	double dblVal	= size;
+	double dblTemp	= 0;
+
+	for(iIndex1 = 0 ; iIndex1 < size ; iIndex1++)
+	{
+		if(iIndex1 != 0)
+			dblVal = ((size - iIndex1) * dblVal * (size + iIndex1)) / pow((double)iIndex1,2);
+        
+		dblTemp = dblVal * dblVal;
+
+		out[iIndex1 * size + iIndex1]	= dblTemp / ( 2 * iIndex1 + 1);
+        
+		if(iIndex1 == size - 1)
+			break;
+        
+		for(iIndex2 = iIndex1 + 1 ; iIndex2 < size ; iIndex2++)
+		{
+			dblTemp = -((size - iIndex2) * dblTemp * (size + iIndex2)) / pow((double)iIndex2,2);
+			out[iIndex1 * size + iIndex2] = dblTemp / (iIndex1 + iIndex2 + 1);
+			out[iIndex2 * size + iIndex1] = out[iIndex1 * size + iIndex2];
+		}
+	}  
+    
+    
+}