* Syntax improvements (I hope) to boolean algebra

* Reverted certain index variables to i

* remove extra line on decimal_to_binary

* Update quine_mc_cluskey.py
Co-authored-by: NJohn Law <johnlaw.po@gmail.com>

* Add missing type annotation

* Fix conversion bug

This failed when called with the documented example of `1.5` and was correctly
pointed out by `mypy --strict`

* Pyupgrade to Python 3.9

* updating DIRECTORY.md
Co-authored-by: Ngithub-actions <${GITHUB_ACTOR}@users.noreply.github.com>

* [mypy] Add/fix type annotations for boolean_algebra

* [mypy] Add/fix type annotations for boolean_algebra

* [mypy] Add/fix annotations for boolean_algebra

* updating DIRECTORY.md

* updating DIRECTORY.md

* Fixed accidental commit of file I have't touched

* fixup! Format Python code with psf/black push

* updating DIRECTORY.md

* updating DIRECTORY.md

* Fixed some suggested coding style issues

* Update rsa_key_generator.py

* Update rsa_key_generator.py
Co-authored-by: Ngithub-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: NJohn Law <johnlaw.po@gmail.com>

* Fix spelling in docstrings

* Improve comments and formatting

* Update print statement to reflect doctest change

* improve phrasing and apply black

* Update rat_in_maze.py

    This method is recursive starting from (i, j) and going in one of four directions:
    up, down, left, right.
    If a path is found to destination it returns True otherwise it returns False.
Co-authored-by: NChristian Clauss <cclauss@me.com>

* Tabs --> spaces in quine_mc_cluskey.py

* fixup! Format Python code with psf/black push

* added doctests for compare_string and is_for_table

>>>compare_string('0010','0110')
       '0_10'
>>> is_for_table('__1','011',2)
	True
The above doctests were added

* Update quine_mc_cluskey.py

* Update quine_mc_cluskey.py

* Update quine_mc_cluskey.py

* Added Zeller's congruence algorithm

* Update args help

* add a few doctests

* remove old file