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Info:
This pen is created as part of FreeCodeCamp's "Build a Javascript Calculator" exercise. Since there are no Android emulator for the Casio fx-9860, this pen aims to recreate part of the basic calculation function of that calculator so it can be used on an Android phone (or other devices). It is designed to fulfill the following user stories:
- I can add, subtract, multiply and divide two numbers.
- I can clear the input field with a clear button.
- I can keep chaining mathematical operations together until I hit the equal button, and the calculator will tell me the correct output.
