trick/trick_source/trick_utils/math/src/matxtrans.c

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2015-02-26 15:02:31 +00:00
/*******************************************************************************
* *
* Trick Simulation Environment Software *
* *
* Copyright (c) 1996,1997 LinCom Corporation, Houston, TX *
* All rights reserved. *
* *
* Copyrighted by LinCom Corporation and proprietary to it. Any unauthorized *
* use of Trick Software including source code, object code or executables is *
* strictly prohibited and LinCom assumes no liability for such actions or *
* results thereof. *
* *
* Trick Software has been developed under NASA Government Contracts and *
* access to it may be granted for Government work by the following contact: *
* *
* Contact: Charles Gott, Branch Chief *
* Simulation and Graphics Branch *
* Automation, Robotics, & Simulation Division *
* NASA, Johnson Space Center, Houston, TX *
* *
*******************************************************************************/
/*
PURPOSE: (Matrix times Matrix transpose) ASSUMPTIONS AND LIMITATIONS: ((Square matrix)) PROGRAMMERS: (((Les Quiocho)
(NASA/JSC) (Jan 1993) (v1.0) (Init Release))) */
/*
* $Id: matxtrans.c 49 2009-02-02 22:37:59Z lin $
*/
#include "../include/trick_math.h"
void matxtrans(double **prod, /* Out: product of the two matrices */
double **mat1, /* In: matrix 1 */
double **mat2, /* In: matrix 2 */
int n)
{ /* In: array size */
int i, j, k;
for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
prod[i][j] = 0.0;
for (k = 0; k < n; k++) {
prod[i][j] += mat1[i][k] * mat2[j][k];
}
}
}
return;
}