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Do you have any examples of using the chain rule, for (automatic) differentiation?
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Goal: implement a signed version of (co)product structure on tensor products of graded (or super) (co)algebras. We should be able to define superalgebras `A` and `B` and specify that when they are …
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I see that you've made it possible to use REDUCE for symbolic manipulations, but I was hoping to be able to use sympy. I tried the obvious thing:
```julia
using SymPy, Grassmann
@vars x y # This …
moble updated
5 years ago
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It might be nice to consider more exotic algebras and categories. Lie and Clifford algebras, groupoids, lattices, etc. I'm not sure any of these are necessary but if someone is excited to work on them…
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```
sage: R = Zmod(6)
sage: R(4).divides(R(2))
Traceback (most recent call last):
...
ArithmeticError: reduction modulo 4 not defined
```
See the [relevant discussion on sage-devel](https://groups…
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As discussed [in this Wiki page](https://github.com/pynac/pynac/wiki/Which-part-of-Pynac-gets-actually-used%3F) these (by Sage) unused files are part of a nexus that potentially slows down Pynac opera…
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# cd /Users/fred/fred/clifford-master; python
# Instantiate algebra and unit vectors
from clifford import *;
p,q,r = 2,0,0; # r = 0 !
GAlayout, GAblades = Cl(p, q);
(e0, e1) = ( GAblades[GAlayout…
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This is a slight tweak to the docbuild code to avoid the overhead of using `multiprocessing.Pool` for a single-process doc build.
On Cygwin particularly the docbuild crashes when using multiprocess…
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There are some upcoming algebras in Sage (Clifford algebras in #15300, Yangians in #15484, and orthogonal/symplectic basis for Sym #15536; likely others) that would benefit from having a category wi…
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Instead of using `map`, we should instead use the `element_constructor` parameter of `IntegerListsNN`.
Depends on #10672
CC: @darijgr
Component: **algebra**
Author: **Travis Scrimshaw**
Branch…