14 September 2021   7:36:17.152 PM
 
POWER_METHOD_TEST
  FORTRAN90 version:
  Test the POWER_METHOD library.
 
TEST01
  Use POWER_METHOD on the Fibonacci2 matrix.
 
  Matrix order N         =      100
  Maximum iterations     =      500
  Error tolerance        =   0.100000E-07
 
  Number of iterations   =      375
  CPU time               =   0.204990E-01
  Estimated eigenvalue   =   1.6180340355
  Correct value          =   1.6180340052
  ||Error||              =   0.303665E-07
 
  Sine of angle between true and estimated vectors =   0.0000000632
 
TEST02
  Use POWER_METHOD2 on the Fibonacci2 matrix.
 
  Matrix order N         =       10
  Maximum iterations     =      500
  Error tolerance        =   0.100000E-07
 
  Number of iterations   =       67
  CPU time               =   0.570000E-04
  Estimated eigenvalue   =   1.6180339449  0.0000000000
  Correct value          =   1.6180340052
  ||Error||              =   0.602707E-07
 
  Sine of angle between true and estimated vectors =   0.0000000298
 
TEST03
  Use POWER_METHOD2 on the TRIS (tridiagonal scalar) matrix.
 
  Matrix order N         =      100
  Maximum iterations     =     4000
  Error tolerance        =   0.100000E-07
 
  Number of iterations   =     4000
  CPU time               =   0.161602    
  Estimated eigenvalue   =  10.0002408447  5.6488868801
  Correct max eigenvalue =  10.0000000000  5.6541179289
  ||Error||              =   0.523659E-02
 
POWER_METHOD_TEST:
  Normal end of execution.
 
14 September 2021   7:36:17.334 PM