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HessenbergFactorization does not have property Q #84

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baggepinnen opened this issue Feb 17, 2022 · 0 comments
Open

HessenbergFactorization does not have property Q #84

baggepinnen opened this issue Feb 17, 2022 · 0 comments

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@baggepinnen
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baggepinnen commented Feb 17, 2022

Which the LinearAlgebra version has.

julia> H = hessenberg(randn(3,3))
Hessenberg{Float64, UpperHessenberg{Float64, Matrix{Float64}}, Matrix{Float64}, Vector{Float64}, Bool}
Q factor:
3×3 LinearAlgebra.HessenbergQ{Float64, Matrix{Float64}, Vector{Float64}, false}:
 1.0   0.0       0.0
 0.0  -0.783288  0.621658
 0.0   0.621658  0.783288
H factor:
3×3 UpperHessenberg{Float64, Matrix{Float64}}:
  0.891223  0.891774   -1.97933
 -0.954603  0.0322819  -1.45461
           0.259812   -0.536947

julia> H.Q
3×3 LinearAlgebra.HessenbergQ{Float64, Matrix{Float64}, Vector{Float64}, false}:
 1.0   0.0       0.0
 0.0  -0.783288  0.621658
 0.0   0.621658  0.783288
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