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/*******************************************************
*
* Author: Shinsaku Hiura, Hirokazu Kato
*
* shinsaku@sys.es.osaka-u.ac.jp
* kato@sys.im.hiroshima-cu.ac.jp
*
* Revision: 2.1
* Date: 99/07/16
*
*******************************************************/
#include <stdio.h>
#include <math.h>
#include <AR/matrix.h>
int arMatrixUnit(ARMat *unit)
{
int r, c;
if(unit->row != unit->clm) return -1;
for(r = 0; r < unit->row; r++) {
for(c = 0; c < unit->clm; c++) {
if(r == c) {
ARELEM0(unit, r, c) = 1.0;
}
else {
ARELEM0(unit, r, c) = 0.0;
}
}
}
return 0;
}
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