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diff --git a/2.3-1/src/c/matrixOperations/spec2/zspec2a.c b/2.3-1/src/c/matrixOperations/spec2/zspec2a.c
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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 <stdlib.h>
+#include "spec.h"
+#include "lapack.h"
+#include "zeros.h"
+#include "stdio.h"
+#include "conj.h"
+
+void zspec2a(doubleComplex* in, int rows,doubleComplex* eigenvalues, doubleComplex* eigenvectors){
+ int i = 0, j = 0;
+ int hermitian = 0;
+ int INFO = 0;
+ int iWorkSize = 0;
+ doubleComplex* pdblWork;
+ doubleComplex* pdblLeftvectors;
+ doubleComplex* pdblRightvectors;
+ doubleComplex* pdblRWork;
+ double* pdblRWork2;
+ double* outReal;
+ double* outImag;
+ doubleComplex* inCopy;
+
+ inCopy = (doubleComplex*)malloc((unsigned int)(rows*rows) * sizeof(doubleComplex));
+ outReal = (double*)malloc((unsigned int)rows * sizeof(double));
+ outImag = (double*)malloc((unsigned int)rows * sizeof(double));
+ pdblLeftvectors=NULL;
+ pdblRightvectors=NULL;
+
+ iWorkSize = 2*rows;
+ pdblWork = (doubleComplex*)malloc((unsigned int)iWorkSize * sizeof(doubleComplex));
+ pdblRWork = NULL;
+ pdblRWork2 = NULL;
+
+ for(i=0;i<rows*rows;i++) {
+ inCopy[i]=DoubleComplex(zreals(in[i]),zimags(in[i]));
+ eigenvectors[i]=DoubleComplex(zreals(in[i]),zimags(in[i]));
+ }
+ zzerosa(eigenvalues,1,rows*rows);
+
+
+ /* look if the matrix is symmetric */
+ for (i=0;i<rows;i++){
+ for (j=0;j<rows;j++)
+ if ( (zreals(in[i*rows+j])!=zreals(zconjs(in[i+j*rows]))) ||
+ (zimags(in[i*rows+j])!=zimags(zconjs(in[i+j*rows]))) )
+ break;
+ if (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)) hermitian=1;
+
+
+ /* apply lapack function according to symmetry */
+ if(hermitian){
+ pdblRWork2 = (double*)malloc((unsigned int)(3*rows) * sizeof(double));
+ C2F(zheev)( "V", "U", &rows, eigenvectors, &rows, outReal, pdblWork, &iWorkSize, pdblRWork2, &INFO );
+ dzerosa(outImag,1,rows);
+ for (i=0;i<rows;i++) eigenvalues[i+i*rows]=DoubleComplex(outReal[i],outImag[i]);
+ }
+ else {
+ pdblRWork = (doubleComplex*)malloc((unsigned int)(3*rows) * sizeof(doubleComplex));
+ C2F(zgeev)( "N", "V", &rows, inCopy, &rows, eigenvalues,
+ pdblLeftvectors, &rows, eigenvectors, &rows, pdblWork, &iWorkSize,
+ pdblRWork, &INFO );
+ for (i=1;i<rows;i++) {
+ eigenvalues[i+i*rows]=DoubleComplex(zreals(eigenvalues[i]),zimags(eigenvalues[i]));
+ eigenvalues[i]=DoubleComplex(0,0);
+ }
+ }
+
+
+
+
+ free(inCopy);
+ free(outReal);
+ free(outImag);
+ free(pdblWork);
+ free(pdblRWork);
+ free(pdblRWork2);
+ free(pdblLeftvectors);
+ free(pdblRightvectors);
+}