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Merged
merged 15 commits into from
Jun 18, 2023
Merged

Simplex algorithm #8825

merged 15 commits into from
Jun 18, 2023

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imengus
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@imengus imengus commented Jun 16, 2023

Describe your change:

Fixes: #8820
Implements the simplex algorithm for solving linear programs.
Adds linear_programming folder.

  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • Documentation change?

Checklist:

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
  • If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

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@CaedenPH CaedenPH left a comment

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  1. Reformat all your doctests so that the np.ndarray utilises the full line length, as shown in one suggestion
  2. In what scenarioes would you enter a different tableau into pivot, find_pivot, and other functions like this? In the doctests you just us t.tableau but if you refactor this to not accept a tableau input you can create more concise doctests such as Tableau(np.array([[-2,-1,0,0,0], [3,1,1,0,6], [1,2,0,1,7.]]), 2).find_pivot() without having to assign the variable t

imengus and others added 2 commits June 17, 2023 00:29
Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>
Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>
@algorithms-keeper algorithms-keeper bot added the awaiting reviews This PR is ready to be reviewed label Jun 16, 2023
pre-commit-ci bot and others added 3 commits June 16, 2023 23:33
Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>
@algorithms-keeper algorithms-keeper bot added tests are failing Do not merge until tests pass and removed tests are failing Do not merge until tests pass labels Jun 16, 2023
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imengus commented Jun 17, 2023

@cclauss here is the simplex algorithm I mentioned in the issue. Please could you review?

imengus and others added 5 commits June 17, 2023 21:18
Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>
Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>
@algorithms-keeper algorithms-keeper bot removed the awaiting reviews This PR is ready to be reviewed label Jun 18, 2023
@cclauss cclauss merged commit e6f89a6 into TheAlgorithms:master Jun 18, 2023
sedatguzelsemme pushed a commit to sedatguzelsemme/Python that referenced this pull request Sep 15, 2024
* feat: added simplex.py

* added docstrings

* Update linear_programming/simplex.py

Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>

* Update linear_programming/simplex.py

Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update linear_programming/simplex.py

Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* ruff fix

Co-authored by: CaedenPH <caedenperelliharris@gmail.com>

* removed README to add in separate PR

* Update linear_programming/simplex.py

Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>

* Update linear_programming/simplex.py

Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>

* fix class docstring

* add comments

---------

Co-authored-by: Caeden Perelli-Harris <caedenperelliharris@gmail.com>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>
@isidroas isidroas mentioned this pull request Jan 25, 2025
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Create optimization folder
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