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qr!(A) \ b
MWE
julia> using BandedMatrices, LinearAlgebra julia> A = brand(5, 5, 3, 3); b = rand(5); julia> x = qr(A) \ b; julia> inplace_x = qr!(A) \ b; julia> x - inplace_x 5-element Array{Float64,1}: -3.175391918390031 1.84667185044204 -2.3780660555429693 3.1139376580548332 -1.8511434079204685
The text was updated successfully, but these errors were encountered:
Oops, this is a dup of #197
Sorry, something went wrong.
If qr! is not supported, maybe it should error instead of giving incorrect answers...
qr!
It is supported and in fact used in qr, you just need to make sure your bands are padded with zeros.
qr
We could add a check that the top u bands are zero.
u
Closing this since its a dup.
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MWE
The text was updated successfully, but these errors were encountered: