From a9d0c72c839428a17956fa0530977fc058d8a799 Mon Sep 17 00:00:00 2001 From: siddhu8990 Date: Tue, 10 May 2016 17:17:41 +0530 Subject: Added support for cumprod, cumsum, triu, tril functions --- src/c/matrixOperations/triu/dtriua.c | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/c/matrixOperations/triu/dtriua.c (limited to 'src/c/matrixOperations/triu/dtriua.c') diff --git a/src/c/matrixOperations/triu/dtriua.c b/src/c/matrixOperations/triu/dtriua.c new file mode 100644 index 00000000..3a3cc0e5 --- /dev/null +++ b/src/c/matrixOperations/triu/dtriua.c @@ -0,0 +1,33 @@ +// 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 to extract lower triagular entries from given matrix +#include "triu.h" + +void dtriua (double *in, int row, int column, double diag, double *out) +{ + int row_counter, col_counter = 0; + + for(row_counter=0; row_counter < row; row_counter++) + { + for(col_counter=0; col_counter < column; col_counter++) + { + if((double)(row_counter + diag) <= (double)col_counter) + { + out[col_counter*row+row_counter] = in[col_counter*row+row_counter]; + } + else + { + out[col_counter*row+row_counter] = 0; + } + } + } +} \ No newline at end of file -- cgit From c75fb67154fb5679d6ede9a52d5f5ae15600f9f9 Mon Sep 17 00:00:00 2001 From: siddhu8990 Date: Mon, 6 Jun 2016 09:18:33 +0530 Subject: File handling functions added --- src/c/matrixOperations/triu/dtriua.c | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) (limited to 'src/c/matrixOperations/triu/dtriua.c') diff --git a/src/c/matrixOperations/triu/dtriua.c b/src/c/matrixOperations/triu/dtriua.c index 3a3cc0e5..80db14b3 100644 --- a/src/c/matrixOperations/triu/dtriua.c +++ b/src/c/matrixOperations/triu/dtriua.c @@ -1,15 +1,17 @@ -// 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 +/* Copyright (C) 2016 - IIT Bombay - FOSSEE -//Function to extract lower triagular entries from given matrix + 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 to extract lower triagular entries from given matrix*/ + #include "triu.h" void dtriua (double *in, int row, int column, double diag, double *out) -- cgit