input-eigen1

有限元程序

/* ================================================================ */
/* Test linear equation solvers and eigenvalue/eigenvector routines */
/* ================================================================ */

print "\n";
print "=============================================\n";
print "*** Basic eigenvalue/eigenvector calculations\n";
print "=============================================\n\n";

/* Setup (2x2) [K] matrix and [M] = [I] */ 

K = [  2,  -2; -2,   4 ];
M = [  1,   0;  0,   1 ];

PrintMatrix(K,M);

/* Compute eigenvalues and eigenvectors */ 

eigen = Eigen ( K, M, [2]);
eigenvalue  = Eigenvalue ( eigen );
eigenvector = Eigenvector ( eigen );

/* Print eigenvalues and eigenvectors */ 

PrintMatrix( eigenvalue );
PrintMatrix( eigenvector );

print "\n";
print "===============\n";
print "*** End of Test\n";
print "===============\n";

quit;