Added support for cumprod, cumsum, triu, tril functions

1 files changed, 37 insertions, 0 deletions

diff --git a/src/c/matrixOperations/cumsum/u16rowcumsuma.c b/src/c/matrixOperations/cumsum/u16rowcumsuma.c
new file mode 100644
index 0000000..b27e453
--- /dev/null
+++ b/src/c/matrixOperations/cumsum/u16rowcumsuma.c
@@ -0,0 +1,37 @@
+// Copyright (C) 2016 - 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: Siddhesh Wani
+// Organization: FOSSEE, IIT Bombay
+// Email: toolbox@scilab.in
+
+//Function returns cumulative sum of members of array/matrix
+
+#include "cumsum.h"
+#include "types.h"
+
+void u16rowcumsuma(uint16 *in1, int row, int column, uint16 *out)
+{
+	int row_cnt, col_cnt = 0;
+	
+	//assign elements in first row as it is
+	for (col_cnt = 0; col_cnt < column; col_cnt++)
+	{
+		out[col_cnt*row] = in1[col_cnt*row];
+	}	
+	//For second row onwards
+	for (col_cnt = 0; col_cnt < column; col_cnt++)
+	{
+		for ( row_cnt = 1; row_cnt < row; row_cnt++)
+		{
+			
+			out[col_cnt*row+row_cnt] = in1[col_cnt*row+row_cnt] \
+											+ out[col_cnt*row+row_cnt -1];
+		}
+	}
+		
+}
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