Feature/calculator

[siambasher123]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.15%. Comparing base (f57ffa9) to head (ef0ab4e).

Additional details and impacted files

@@            Coverage Diff            @@
##             master    #6538   +/-   ##
=========================================
  Coverage     75.15%   75.15%           
  Complexity     5594     5594           
=========================================
  Files           688      688           
  Lines         19361    19361           
  Branches       3744     3744           
=========================================
  Hits          14551    14551           
  Misses         4245     4245           
  Partials        565      565           

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[DenizAltunkapan]

Thank you for your contribution. However, this implementation is not considered an algorithm, and therefore it does not fit the scope of this repository.