Christopher Smith

The pts in V and V2 describe the same sort of shape, but the first has a vertical line while the 2nd does not. Only 2 of the 3 segments...

While vertices ("V" intersections where segments touch at their vertices) are ignored with the `USE_IGNORE_SEGMENT_ENDINGS` set to True, the "T" intersections (where a segment endpoint touches the interior of another...

``` >>> isect_polygon([(0,0),(1,0),(2,1),(-1,1)]) Traceback (most recent call last): File "isect.py", line 337, in remove self._events_current_sweep.remove(event) File "isect.py", line 1282, in remove raise KeyError(str(key)) KeyError: 'Event(0x332b3e8, s0=(-1, 1), s1=(0, 0), p=(-1,...

`_solve` and `_solve_system`: return list of dictionaries

7

#### References to other Issues or PRs #### Brief description of what is fixed or changed This is mostly an internal clean-up of `solve` to work with lists of dictionaries...

add solve_output to explanations

7

#### References to other Issues or PRs #### Brief description of what is fixed or changed #### Other comments #### Release Notes * other * an explanation about solve output...

I wonder if a simpler text-table utility might be useful. TableForm might be more complicated than needed for some situations. ```python def titled_table(t, align=""): """print lines of a table, justified...

importing from abc in polyroots.py removes O from clashing symbols

3

Why is it that when I try to import `z` from abc in polyroots.py, it caused a doctest of sympify to fail? ```python >>> doctest('sympify') # fails at sympy\sympy\core\sympify.py", line...

solve does not simplify solutions from poly solvers

3

`solve`, when using the poly solvers, is not simplifying the results: ```python >>> var('x y a b c R') (x, y, a, b, c, R) >>> yes=list(ordered(set(flatten(solve([x**2 + y**2 -...

bisect does not warn when no sign change is detected

1

```python >>> nsolve(exp(x),(-22,-21), solver='bisect') -22.0000000000000 >>> sign(exp(-22)*exp(-21)) 1 >>> nsolve(x**2-1,x,(2,3),solver='bisect') Traceback (most recent call last): ... ValueError: Could not find root within given tolerance. (9.0000000000000000052 > 2.16840434497100886801e-19) Try another starting...

22428 do not test larger expr in assumptions

2

#### References to other Issues or PRs fixes #22428 closes #23693 as alternative #### Brief description of what is fixed or changed #### Other comments #### Release Notes * core...