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## Idea
Let `M` be a multivariate monomial.
Given four variables `x_1,x_2,x_3,x_4` one example would be `M = (x_1^2)*(x_2^2)*(x_4)`.
In this example, `M` is constituted by the product of 4 univar…
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AMICI uses SymPy for symbolic computation and mathematical formulas from SBML files are converted to strings and loaded with `sympy.sympify`. This function does not produce a faithful representation o…
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# 计算机结构和解释--Structure and Interpretation of Computer Programs | Hexo
SCIP笔记-1
[https://arbaleast.github.io/2021/12/16/Structure-and-Interpretation-of-Computer-Programs/](https://arbaleast.github.io/…
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I find the following strange and confusing:
```
sage: z6 = CyclotomicField(6).gen()
sage: z = 1 - z6
sage: imag(z)
-1/2*sqrt(3)
sage: imag(z).parent()
Symbolic Ring
sage: z.imag()
-1/2*sqrt3
sage: …
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### Situation ###
As discussed in https://github.com/sympy/sympy/discussions/24159 (also see excerpt below), I have done a re-write of qapply.
### Issues (fixed) ###
In order of relevance the …
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I wanted to create a symbolic numpy array to help with some scalability issues with Dask. The goal here is to provide a target for high-level array expression optimization.
This is leaning heavil…
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At this time, the update.formula() method always performs a number of transformations on the results, eliminating redundant variables and reordering interactions to be after the main effects. This is …
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### 🐛 Describe the bug
I am running into a bug potentially related to #114483 where dynamo fails to export `Tensor.tolist` with data-dependent size. A minimal repro is below:
```python
import …
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## Summary
As currently written, a symbolic LC is created on every operation. We should expect that most Symbolic LC's are small, and probably should try to keep things on stack via small vec o…
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I have been comparing two `Tuple{Num}` and realized that using `==` and `isequal` shows different behaviors. The results of `==` in this example also baffle me:
```
using Symbolics
@variables x y
(…