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/*
* Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
* Copyright (C) 2008 - INRIA - Arnaud TORSET
*
* 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 "matrixPow.h"
#include "lapack.h"
#include "eye.h"
#include "matrixMultiplication.h"
void dpowma(double* in, int size, double expand, double* out){
#ifndef WITHOUT_BLAS
switch ((int)expand){
case 0 :
deyea(out,size,size);
break;
case 1 :
{
int i;
for (i=0;i<size*size;i++) out[i]=in[i];
}
break;
default :
{
int i=0,j=0,k=0;
int One=1;
for (i=1; i<expand; i++){
for (j=0;j<size;j++) /*column*/ {
for (k=0;k<size;k++)/*row*/{
out[k+j*size]=ddot_(&size,in+k,&size,in+j*size,&One);
}
}
}
}
break;
}
#else
switch ((int)expand){
case 0 :
deyea(out,size,size);
break;
case 1 :
{
int i;
for (i=0;i<size*size;i++) out[i]=in[i];
}
break;
default :
{
int i=0,j=0;
double* Pow;
Pow=malloc((uint)(size*size)*sizeof(double));
for (i=0;i<size*size;i++) out[i]=in[i];
for (i=1; i<expand; i++){
for (j=0;j<size*size;j++) Pow[j]=out[j];
dmulma(Pow,size,size,in,size,size,out);
}
}
break;
}
#endif
}
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