Arnoldi.m, Octave - rextester

Arnoldi.m

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A =

   5.30661   0.20596   0.28877   0.29301   0.17129
   0.27591   5.43616   0.45261   0.87413   0.92576
   0.86972   0.92185   5.31335   0.24834   0.77081
   0.90646   0.91226   0.77295   5.28818   0.93903
   0.56166   0.62879   0.25642   0.54950   5.84267

b =

   1
   1
   1
   1
   1

Q =

   0.447214  -0.818424  -0.172120  -0.313685   0.046466
   0.447214   0.086345   0.815924   0.017291   0.355688
   0.447214   0.171287  -0.490587   0.533280   0.495578
   0.447214   0.541302  -0.238209  -0.661056  -0.115123
   0.447214   0.019490   0.084992   0.424170  -0.782609

H =

   7.80244  -0.21208   0.34965   0.13756  -0.37683
   0.83975   4.78331   0.26477   0.24893  -0.12404
   0.00000   0.60563   4.72272  -0.13080  -0.33592
   0.00000   0.00000   0.22005   4.81035  -0.21947
   0.00000   0.00000   0.00000   0.01175   5.06814

Z =

   0.046466
   0.355688
   0.495578
  -0.115123
  -0.782609

ZZ =

   0.44721
   0.44721
   0.44721
   0.44721
   0.44721

ans =   -3.1288e-11

λ

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