Calculator App 🧮

This is a simple calculator application built using React Native. It supports basic arithmetic operations, square root, percentage, and more.

Features

• Basic arithmetic operations: addition, subtraction, multiplication, and division.
• Square root calculation.
• Percentage calculation.
• Toggle between positive and negative numbers.
• Clear all input.
• Backspace functionality.
• Supports decimal numbers.
• Displays formatted numbers with thousand separators.

Installation

1. Clone the repository:

   git clone https://github.com/ChathurK/Calculator-App.git
   cd Calculator-App

2. Install dependencies:

   npm install

3. Start the application:

   npm start

Usage

• Tap the buttons to input numbers and operators.
• Use the AC button to clear all input.
• Use the +/- button to toggle the sign of the current number.
• Use the √ button to calculate the square root of the current number.
• Use the % button to calculate the percentage.
• Use the = button to evaluate the expression.
• Use the backspace button to remove the last character.

Project Structure

/calculator
├── components
│   ├── button.js       # Custom button component for the calculator
│   ├── icons.js        # Icon definitions used in the calculator buttons
│   └── row.js          # Component to arrange buttons in a row
│
├── styles
│   └── colors.js       # Color definitions and styles for the app
│
├── util
│   └── calculator.js   # Utility functions and logic for calculator operations
│
└── App.js              # Main application component

Dependencies

• react: JavaScript library for building user interfaces.
• react-native: Framework for building native apps using React.
• expo: Framework and platform for universal React applications.
• mathjs: Library for mathematical operations.
• react-native-vector-icons: Library for customizable icons.

Demonstration

demo.mp4