Eigenvalues in (-0.5,0.0]
Find eigenvalues in interval (-0.50, 0.00]
Original Matrix A of order n = 200
(0)
Reduce band back to tridiagonal whenever larger than 20
Current subproblem after reduction to tridiagonal form
(1)
Theoretical bandgrowth shown in red
Current subproblem after iteration #1 (band = 7)
(2)
Theoretical bandgrowth shown in red
Current subproblem after iteration #2 (band = 29)
(3)
Reduce band back to tridiagonal whenever larger than 20
Current subproblem after band reduction
(4)
Theoretical bandgrowth shown in red
Current subproblem after iteration #3 (band = 7)
(5)
Theoretical bandgrowth shown in red
Current subproblem after iteration #4 (band = 39)
(6)
Reduce band back to tridiagonal whenever larger than 20
Current subproblem after band reduction
(7)
Theoretical bandgrowth shown in red
Current subproblem after iteration #5 (band = 3)
(8)
Theoretical bandgrowth shown in red
Current subproblem after iteration #7 (band = 27)
(9)
Reduce band back to tridiagonal whenever larger than 20
Current subproblem after band reduction
(10)
Theoretical bandgrowth shown in red
Current subproblem after iteration #8 (band = 3)
(11)
Theoretical bandgrowth shown in red
Current subproblem after iteration #11 (band = 21)
(12)
Reduce band back to tridiagonal whenever larger than 20
Current subproblem after band reduction
(13)
Theoretical bandgrowth shown in red
Current subproblem after iteration #12 (band = 3)
(14)
Theoretical bandgrowth shown in red
After 19 iterations, current subproblem has converged
(15)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #1 (subproblems of order 139 and 61)
(16)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #2 (subproblems of order 96 and 43)
(17)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #3 (subproblems of order 20 and 23)
(18)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #4 (subproblems of order 12 and 11)
(19)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #5 (subproblems of order 4 and 7)
(20)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #6 (subproblem of order 7)
(21)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #7 (subproblems of order 11 and 9)
(22)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #8 (subproblem of order 9)
(23)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #9 (subproblems of order 6 and 5)
(24)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #10 (subproblem of order 5)
(25)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #11 (subproblem of order 6)
(26)
Find eigenvalues in interval (-0.50, 0.00]
Matrix A after divide #12 (subproblems of order 6 and 6)
(27)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #13 (subproblem of order 6)
(28)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #14 (subproblem of order 6)
(29)
Subproblems smaller than 11 solved directly using LAPACK
Matrix A after divide #15 (subproblem of order 4)
(30)
There were 43 eigenvalue(s) found in ( -0.50, 0.00]
Eigenvalues of A (order n = 200)
(31)