🚀 Features Basic Operations Arithmetic: Addition, Subtraction, Multiplication, Division

Advanced: Percentage, Power (^), Square Root

Utility: Clear (C), Backspace (⌫), Sign Change (±)

Memory: Parentheses support for complex expressions

Scientific Functions Trigonometric: sin, cos, tan, asin, acos, atan (degrees)

Logarithmic: log (base 10), ln (natural log)

Exponential: x², x³, 10^x, e, π

Advanced: Factorial (x!), Reciprocal (1/x), Square Root (√)

Web-Optimized Design Responsive Layout: Adapts to different screen sizes

Dual Panel: Scientific and basic functions visible simultaneously

Modern UI: Clean, dark theme with intuitive color coding

Horizontal Layout: Optimized for desktop and wide screens

🛠️ Technology Stack

Framework: Flutter 3.0+

Platform: Web (optimized for desktop browsers)

Architecture: MVC with StatefulWidget

Styling: Material Design with custom themes

📁 Project Structure

lib/
├── main.dart                 # Application entry point
├── splash_screen.dart        # Splash screen with CM Calco branding
└── calculator_screen.dart    # Main calculator interface

🚀 Getting Started Prerequisites Flutter SDK 3.0 or higher

Chrome browser (for web development)

Installation Clone or create the project

flutter create cm_scientific_calculator
cd cm_scientific_calculator

Replace default files

Copy the provided Dart files to the lib/ directory

Update pubspec.yaml with the required dependencies

Install dependencies

flutter pub get

Run for web

flutter run -d chrome

Build for production

flutter build web

🎯 Usage Basic Calculations Enter numbers using the number pad

Use +, -, ×, ÷ for basic operations

Press = to see the result

Use C to clear or ⌫ to backspace

Scientific Functions Trigonometric: Enter angle, then press sin/cos/tan

Logarithmic: Enter number, then press log/ln

Constants: Press π or e to insert mathematical constants

Power Functions: Use x², x³, or ^ for exponentiation

Advanced Features Parentheses: Use ( and ) for complex expressions

Sign Change: Press ± to toggle positive/negative

Reciprocal: Press 1/x for inverse calculations

🌟 Key Features Responsive Design: Optimized for desktop web browsers

Real-time Display: Shows current expression and result

Error Handling: Graceful handling of mathematical errors

Large Number Support: Handles very large and very small numbers

Decimal Precision: Configurable decimal places (6 by default)

🔧 Customization Modifying Constants Edit the display precision and limits in calculator_screen.dart:

// Change decimal precision
_output = value.toStringAsFixed(6); // Change 6 to desired precision

// Modify factorial limit
if (value >= 0 && value <= 20) // Adjust range as needed
Styling Changes
Update colors and styling in the _buildButton method:

dart
style: ElevatedButton.styleFrom(
  backgroundColor: Colors.blueGrey[700], // Change button colors
  // ... other styling
)

🐛 Known Issues Factorial function limited to numbers 0-20 for performance

Very large exponents may cause overflow

Some trigonometric results may have precision limitations

📱 Browser Compatibility ✅ Chrome (recommended)

✅ Firefox

✅ Safari

✅ Edge

🚀 Deployment Build for Web

flutter build web --release

📄 License This project is open source and available under the MIT License.

🤝 Contributing Contributions, issues, and feature requests are welcome! Feel free to check the issues page.

📞 Support If you encounter any problems or have suggestions, please open an issue on the repository.

Built with ❤️ using Flutter

CM Scientific Calculator - Making complex calculations simple