other versions
- stretch 3.7.0-2
zlahqr.f(3) | LAPACK | zlahqr.f(3) |
NAME¶
zlahqr.fSYNOPSIS¶
Functions/Subroutines¶
subroutine zlahqr (WANTT, WANTZ, N, ILO, IHI, H, LDH, W, ILOZ, IHIZ, Z, LDZ, INFO)
ZLAHQR computes the eigenvalues and Schur factorization of an upper Hessenberg matrix, using the double-shift/single-shift QR algorithm.
Author¶
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