roomay50/calculator

AI Summary: The project's README is outdated, incorrectly stating that the `parser` module is used for expression evaluation when the codebase has transitioned to `SimpleEval`. This issue requires updating the README's "Modules Used" and `equals()` function descriptions to accurately reflect the use of `simpleeval`, ensuring documentation aligns with the current implementation for new users and contributors.

AI Summary: This issue proposes adding a `requirements.txt` file to the project root, listing `simpleeval` as a dependency. The `README` should also be updated to include instructions for installing these dependencies using `pip install -r requirements.txt` for easier project setup.