-
bc.. What is the purpose of NaN? Isn't it better to remove NaN and return an
exception at the moment, where NaN would be created? Seems a more clean
solution to me.
I am interested in arguments for h…
-
See this `ask.sagemath.org` [question](https://ask.sagemath.org/question/55766/a-simple-sum-causes-division-by-zero-exception/) for details.
```
sage: sum((1+r)^i, i, 1, n)
((r + 1)^(n + 1) - r - 1…
-
I've never seen a proper functionality for symbolic matrix manipulation, such as MatrixSymbol in any CAS. Thanks for adding this great feature!
I would need one tiny change to it, such that it reveal…
-
A list of TO-INCLUDEs
- [ ] go thru this paper https://arxiv.org/abs/1905.13189
- [ ] check inspire page https://inspirehep.net/experiments?sort=mostrecent&size=25&page=1&q=&classification=Non-exp…
-
Bret Victor has advocated for user interfaces to allow as direct of manipulation of underlying concepts as is possible, so people can create and explore nearly as fast as they can think.
http://wor…
-
I'm trying to set the random seed for approximate inference. It appears as if it is not possible but I'm not sure if this is true.
(The method being used is ADVI)
```python
self._approx = pm.fi…
-
mpmath has numerics:
https://github.com/fredrik-johansson/mpmath/blob/master/mpmath/functions/zeta.py#L794
but symbolics would be nice.
-
If I'm given a trajectory $q:[t_0,t_1]\to\mathbb R^n$, and a smooth function $f:\mathbb R^n\to\mathbb R^m$, then the composition $f\circ q:[t_0,t_1]\to\mathbb R^m$ is also a valid trajectory. However,…
cohnt updated
6 months ago
-
```
sage: from sage.calculus.calculus import symbolic_expression_from_maxima_string as sefms
sage: var('v1,v2,v3')
(v1, v2, v3)
sage: ex=-1/3*(pi + 1)*(3*(euler_gamma - e)*(pi - 3*v1 - v1/arcsech(1…
-
Nice solver for beam! Well built and easy to use.
However noticed it is extremely slow for large number of supports. I'm using your code as a benchmark for a FEM solver I'm building to model a beam…