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ChebyshevFilterLanczosOrder

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ChebyshevFilterLanczosOrder

Section SCF::Eigensolver
Type integer
Default 5

Used by the Chebyshev filter only. The number of Lanczos iterations used to construct the tridiagonal matrix, from which the upper bound of H is estimated. A value in the range 4 <= ChebyshevFilterLanczosOrder <= 10 is reasonable. Values greater than 10 will raise an assertion.

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