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The characteristic polynomials testing the `VelocityAutocorr` class and the `ViscosityHelfand` class use for loops and could benefit from more vectorized operations in NumPy, as explained by @hmacdope…
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When calculating the roots of `y**3 - 6*y**2 + 11.25*y-6.25`, sympy throws the error:
```
Traceback (most recent call last):
File "/home/censored/.local/lib/python3.10/site-packages/sympy/polys…
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```
what we really want is a motor readout of confidence. a fast direct response
is certain, a correction from one direction to the other is not. this isn't
well-separated from diligence -- noisy …
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Currently, when trying to divide polynomials with coefficients in an inexact field, an error is raised:
```m2
i1 : R = CC[x]
o1 = R
o1 : PolynomialRing
i2 : quotientRemainder(x^2 + 2, x -…
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Current implementation uses multiply repeatedly along axis. This can likely be
done much more efficiently with dedicated code.
Somewhat the same problem as issue #46, but a lot more book keeping.
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Dear @palatej ,
@webelk and I debugged the code. We have a question to the following:
https://github.com/jdemetra/jdemetra-core/blob/d46dea8723afa156bc7736b290643d9e26dbefd4/demetra-highfreq/dem…
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This patch implements Whittaker functions. It depends on #14102. A first version of this patch is available in the sage-combinat queue at trac_14847-whittaker.patch.
Depends on #14102
CC: @sagetr…
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The Legendre polynomials, returned by `legendre_P()`, of the first kind are orthogonal over [-1,1] and are normalized to have value +-1 at the endpoints.
When solving least-squares problems, it's c…
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I have been talking to [Thomas Sturm](http://www.loria.fr/~tsturm/) at ACA today and together we had the following idea, which we should discuss, since it opens up a fully new field of applications f…
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Compare the naming of methods in the QuadraticForm class for consistency with other Sage naming conventions. In particular, it would be nice if there were a set of standard variable substitution me…