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dlarre.f(3) LAPACK dlarre.f(3)

NAME

dlarre.f

SYNOPSIS

Functions/Subroutines


subroutine dlarre (RANGE, N, VL, VU, IL, IU, D, E, E2, RTOL1, RTOL2, SPLTOL, NSPLIT, ISPLIT, M, W, WERR, WGAP, IBLOCK, INDEXW, GERS, PIVMIN, WORK, IWORK, INFO)
DLARRE given the tridiagonal matrix T, sets small off-diagonal elements to zero and for each unreduced block Ti, finds base representations and eigenvalues.

Author

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Wed May 24 2017 Version 3.7.0