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Running the doctests using `pytest --doctest-only` (requires [pytest-doctestplus](https://github.com/astropy/pytest-doctestplus)) results in multiple failures that do not occur when using the current …
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I am having a very strange issue with `linsolve`. After upgrading to a sympy version equal or higher than 1.7, the following code, which worked perfectly on sympy 1.6, gets stuck at solving the linear…
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This comes from http://stackoverflow.com/q/21353081/161801. The act of printing `loss` takes forever, because it is trying to evalf it. It looks like the problem is in `as_terms`.
```
In [13]: loss
^…
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```
import sympy
n = sympy.symbols('n', integer=True)
(sympy.Piecewise((-2*sympy.I*sympy.I**n/(sympy.pi*n) + 2*sympy.I*sympy.I**(-n)/(sympy.pi*n), (n > -sympy.oo) & (n < sympy.oo) & sympy.Ne(n, 0))…
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This integral leads to an exception:
```python
>>> from sympy import *
>>> x = Symbol('x')
>>> I = Integral(x**2*exp(x*(-x/2 + I)) + x**2*exp(-x*(x/2 + I)) - I*exp(x*(-x/2 + I))*sin(x) + I*exp(-x*…
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## Context
I encountered two issues while using the `xreplace` and `find_dynamicsymbols` methods in SymPy's `physics.mechanics` module. Below is a brief code used to illustrate these issues, alon…
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**I tried to install plugin manually and defaultly but it's not working. Always shows following error:**
Attempting to install required packages...
Making sure pip is installed...
Pip is inst…
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See https://github.com/sympy/sympy/pull/9294. A new PR had all the commits from it and was merged. The PR was old and didn't have release notes, resulting in an error from the bot.
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`SymbolicUtils.jl` is pure Julia, and is extendable: https://github.com/JuliaSymbolics/SymbolicUtils.jl
It could replace the `sympy` backend.
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The simplification of `cos(arccot(x)` is according to [wikipedia](https://en.wikipedia.org/wiki/Inverse_trigonometric_functions#Relationships_between_trigonometric_functions_and_inverse_trigonometric_…
hr87 updated
8 months ago