LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
slahqr.f File Reference

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Functions/Subroutines

subroutine slahqr (WANTT, WANTZ, N, ILO, IHI, H, LDH, WR, WI, ILOZ, IHIZ, Z, LDZ, INFO)
 SLAHQR computes the eigenvalues and Schur factorization of an upper Hessenberg matrix, using the double-shift/single-shift QR algorithm. More...