diff options
Diffstat (limited to '2.3-1/src/c/matrixOperations/spec/dspeca.c')
-rw-r--r-- | 2.3-1/src/c/matrixOperations/spec/dspeca.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/2.3-1/src/c/matrixOperations/spec/dspeca.c b/2.3-1/src/c/matrixOperations/spec/dspeca.c deleted file mode 100644 index 1131ecf2..00000000 --- a/2.3-1/src/c/matrixOperations/spec/dspeca.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * 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 <stdlib.h> -#include "spec.h" -#include "lapack.h" -#include "zeros.h" -#include "max.h" - -void dspeca(double* in, int rows,double* out){ - int i=0, j=0; - int symmetric=0; - int INFO=0; - int iWorkSize = 0; - double* pdblWork; - double* outReal; - double* outImag; - double* pdblLeftvectors; - double* pdblRightvectors; - double* inCopy; - - inCopy = (double*)malloc((unsigned int)(rows*rows) * sizeof(double)); - outReal = (double*)malloc((unsigned int)rows * sizeof(double)); - outImag = (double*)malloc((unsigned int)rows * sizeof(double)); - pdblLeftvectors=NULL; - pdblRightvectors=NULL; - - - iWorkSize = 3*rows; - pdblWork = (double*)malloc((unsigned int)iWorkSize * sizeof(double)); - - for(i=0;i<rows*rows;i++) inCopy[i]=in[i]; - /* look if the matrix is symmetric */ - for (i=0;i<rows;i++) - for (j=0;j<rows;j++) - if (in[i*rows+j]!=in[i+j*rows]) break; - - /* the matrix is symmetric if the 2 loops goes to end i.e - i==rows and j==rows */ - if ((i==rows)&&(j==rows)) symmetric=1; - - - /* apply lapack function according to symmetry */ - if(symmetric){ - C2F(dsyev)( "N", "U", &rows, in, &rows, outReal, pdblWork, &iWorkSize, &INFO ); - } - else { - C2F(dgeev)( "N", "N", &rows, inCopy, &rows, outReal, outImag, - pdblLeftvectors, &rows, pdblRightvectors, &rows, pdblWork, &iWorkSize, &INFO ); - } - - for (i=0;i<rows;i++) out[i]=outReal[i]; - - - free(inCopy); - free(outReal); - free(outImag); - free(pdblWork); - free(pdblLeftvectors); - free(pdblRightvectors); -} - |