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For a Hermitian matrix, Schur factorization is equivalent to the eigenvalue decomposition, but it seems to be much slower:
```jl
julia> A = rand(1000,1000); H = Symmetric(A);
julia> @btime eigen(…
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## Description
- While reviewing the FOQUS test suite setup yesterday with @ksbeattie, we realized that `test_start_gui`, one of the tests in `foqus_lib/unit_tests/test_foqus_main.py`, fails
- Thi…
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I am also having a similar issue as given in #90, but on a general SDP problem. Here is the current one (I'm trying to get a slightly better MWE, but it's a weird one. Setting n=10 in this example suc…
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I think we should run a profiler over this to identify current bottlenecks - I have a feeling we can further speed this up.
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The performance of seasonal ARIMA in PR #1586 is limited by the initialization of the Kalman filter (in particular the matrix `P`). Solving the Lyapunov/Sylvester equation is very expensive.
We can…
Nyrio updated
4 years ago
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I have installed the latest version:
Successfully installed cellrank-1.1.dev580+g99ebbf1
And then
>>> import cellrank as cr
>>> scv.tl.velocity_graph(adata, mode_neighbors='connectivities')
…
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```
======================================================= test session starts ========================================================
platform darwin -- Python 3.6.9, pytest-5.3.2, py-1.8.1, plug…
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We have a doctest ensuring that `is_unitary()` crashes for trivial RDF/CDF matrices:
```
The smallest cases. The Schur decomposition used by the
orthonormal algorithm will fail on a matrix of size…
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Fails both with numpy 1.5.1 and numpy master, on 32-bit Linux. Not clear to me if this test is useful or not.
```
===========================================================
FAIL: test_singular (test…
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Hi,
# Code
```rust
let p = nalgebra::Matrix2::new(2.5000002, -1.4999999, -1.4999999, 2.4999998);
let schur = p.schur();
println!("{}", schur.unpack().0);
println!("{}", schur…