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The following code triggers a coercion failure in the symmetric function code
```
sage: H = MacdonaldPolynomialsH(QQ)
sage: P = MacdonaldPolynomialsP(QQ)
sage: m = SFAMonomial(P.base_ri…
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Consider a multivariate fraction F, mixing parameters and variables
(or possibly just an Eliot fraction, where the denonimators are
binomials). The Omega operator applied on F returns the constant t…
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Hi, I have been corresponding with Dr. Reuter, and it seems like we have discovered an issue with the Krylov-Schur decomposition.
I am using the latest version of PyGPCCA (1.0.4), and using PETSc v…
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I get the following error at the step of identifying terminal states. This is after calculating the velocity vectors.
```python
cr.tl.terminal_states(ad_inf, cluster_key="annotation", weight_…
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With this patch, you can now do:
```
sage: s = SymmetricFunctions(QQ).s()
sage: x = s[2,2,1]
sage: x.principal_specialization()
-q^4/(q^11 - 2*q^10 + q^8 + 2*q^6 - 2*q^5 - q^3 + 2*q - 1)
sage: x.pr…
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I am using the eigenvalue reordering features for a real product to solve continuous-time periodic Riccati equations, as an alternative method to "fast" structure exploiting reductions used in conjunc…
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There are two examples of bugs that this patch corrects.
The first is in the conversion of integers between Symmetrica and Sage:
```
sage: from sage.libs.symmetrica.symmetrica import test_integer
…
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The scipy.linalg.qz function implements generalized Schur decomposition for a pair of matrices `A`, `B` such that
`(A, B) = (Q @ AA @ Z*, Q @ BB @ Z*)`, where `AA` is quasi upper triangular and `BB`…
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The documentation says that UniqueRepresentation uses weak refs, but this was switched over to the `@`cached_method decorator. The latter does currently use strong references, so unused unique paren…
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I am currently working with a 2x2 `BlockOperator` where every block is a `NumpyMatrixOperator`. When calling `apply_inverse` on the block operator the `lgmres` method is called. However, executing `Nu…