-
```
The current module organization in SymPy is far from optimal. The "core" is
too big (several hundred kilobytes of code, much unrelated functionality
thrown in one place), and some closely related …
-
A few examples in live.sympy.org with sympy 1.4:
A = MatrixSymbol('A', 2, 2)
B = MatrixSymbol('B', 2, 2)
exp(A)*B
leads to:
```
[...]
File "/base/data/home/apps/s~sympy-live-h…
-
Hi!
I've been working on some projects recently where the majority of my work is python, but I'm calling to SageMath to get the polynomial rings of finite fields, which currently uses the NTL bindi…
-
I wanted to use sympy to invert large integer matrices:
```python
a = [[0, 1, ...], ...] # Some 256 x 256 binary matrix
inv = Matrix(a).inv()
```
But the intermediate results are getting bigge…
-
- [x] bernoulli
- [x] catalan
- [x] charpoly
- [x] chebyshevT
- [x] chebyshevU
- [x] collect
- [x] coshint
- [x] cosint
- [x] cross
- [x] dawson
- [x] dilog
- [x] dirac
- [x] divisors
- […
-
```
I just checked out current master branch and test this:
>>>E = Symbol('E')
>>>J = Symbol('J')
>>>F = Symbol('F')
>>>lmbda = Symbol('lambda')
>>>L = Symbol('L')
>>>
>>>KEG = Matrix([[(3000*E*J - 4…
-
在执行训练命令时报错了。
命令：!python3.8 finetune_speaker_v2.py -m "./OUTPUT_MODEL" --max_epochs 1000 --drop_speaker_embed True
报错日志：
`INFO:OUTPUT_MODEL:{'train': {'log_interval': 10, 'eval_interval': 100, 'se…
-
Really nice work! I am wondering if this is also suitable for the convolution of a 2D field? Do you require the indices of x be related to the physical position it represents? Thanks!
Ke
-
It *might* be possible to just initialize the recursions using formulas like [these](https://math.stackexchange.com/a/107984/26404). In particular, the [DLMF has](https://dlmf.nist.gov/14.3.E6)
$$…
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作者您好，关于SFC3D部分，我有一些问题想跟您请教：
1. 在LineSegment.m函数中，第39-42行的含义您能讲解一下吗？我所理解的是在第38行中dir是直线的方向向量，而39行中的dir_h应该是切平面的法向量，它应该是平行于dir的？并且切点pp1等应该是 最大椭球与障碍物相切的切点，为什么要用例如第46行这样的表达去计算呢？
2. 在LineSegment.m函数中，第89-…