Merge branch 'initial-build'

.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# production
+/build
+
+# misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+/testing

README.md

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+# React Calculator
+
+## Introduction
+
+This project serves as a practical application of the skills acquired through beginner and advanced React courses provided by Meta. It is a sequential calculator application built with React.js, Chakra UI, and the [bignumber.js](https://mikemcl.github.io/bignumber.js/) API. State management techniques are to keep the user interface synchronized with real-time data updates.
+
+## Features
+
+### Current
+
+* Performs basic arithmetic operations (addition, subtraction, multiplication, division, exponentiation) in sequential order.
+* Supports decimals.
+* Displays input in real-time.
+* Shows intermediate results with each operation key press, similar to Windows Calculator.
+* Clear button resets current value with one click and clears the entire equation with a second click.
+* Basic error handling for invalid operations.
+
+### Upcoming
+
+* Memory list to store previous equations and results.
+* Light/dark theme toggling.
+* Keyboard entry.