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It is currently not possible to specify the finite differencing operators used by a calculation at runtime. At the moment, one can use Mathematica to generate multiple copies of a calculation, each w…
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[#2792 (comment)](https://github.com/NanoComp/meep/pull/2792#issuecomment-2171942477) identified a bug in the adjoint gradients in 2D for the $\mathcal{P}$ polarization (electric field in the plane). …
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`ProtocolDAGResult`s are pulled by users to evaluate free energy differences for `Transformation`s they are interested in. These can be rather large, and many can be pulled for a given `Transformation…
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The Hessian matrix could also be evaluated using finite difference method.
- Some info could be taken from https://en.wikipedia.org/wiki/Finite_difference#Relation_with_derivatives
- The matrix …
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In radio astronomy, we often are given a set of RA/Dec coordinates along with a VLSR (LSR usually being what Astropy calls LSRK) for each source. From this, we would like to compute the radial velocit…
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I noticed that the `linearize` function in iosys.py uses finite difference.
I think it wouldn't be too hard to implement an autodiff-based linearize, using autograd, and I propose to do that. I would…
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Hi all, first of all thanks for your hard work on the package. It's a very cool algorithm and I've been making good use of it.
I ran into two small bugs, but I think they would be a low priority fo…
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Dear Firedrakers,
It seems that `'snes_type':'test'` as mentioned in the docs (https://www.firedrakeproject.org/solving-interface.html#checking-the-provided-jacobian) is no longer supported by PE…
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Right now, the jacobian of the full lightcurve doesn't match the finite differences at/around the points of contact. The lower level code works (ie. passes tests), which seems to indicate either 1) th…
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**Is your feature request related to a problem? Please describe.**
central difference approximation is used twice in the computation of double derivatives in functions
BendingEnergyLoss
The com…