Smart Calculator - AI Powered

A sophisticated web-based calculator that uses handwriting recognition powered by Google's Gemini AI to solve mathematical expressions.

Features

• ✍️ Handwriting Recognition: Draw mathematical expressions directly on the canvas
• 🤖 AI-Powered: Uses Google's Gemini AI for accurate interpretation and calculation
• 🎨 Rich Drawing Tools:
  • Multiple color options
  • Adjustable stroke width
  • Eraser tool
  • Undo/Redo functionality
• 💾 Save & Share: Export your calculations as PNG images
• ⌨️ Keyboard Shortcuts:
  • Ctrl/Cmd + Z: Undo
  • Ctrl/Cmd + Y or Ctrl/Cmd + Shift + Z: Redo
  • E: Toggle eraser mode
  • Delete/Backspace: Clear canvas
• 📱 Responsive Design: Works on desktop, tablet, and mobile devices
• 🎯 Touch Optimized: Enhanced support for touch devices and stylus input

Live Demo

Try it out: Smart Calculator Demo

Usage Guide

1. Drawing Expression:

   • Use the canvas to draw your mathematical expression
   • Select colors from the palette
   • Adjust stroke width using the slider
   • Use eraser tool for corrections

2. Calculating:

   • Click the "Calculate" button
   • Wait for AI analysis
   • View the solution in the results panel

3. Additional Tools:

   • Use Undo/Redo for drawing corrections
   • Clear canvas to start over
   • Save calculations as images
   • Reset all settings if needed

Technical Details

Technology Stack

• HTML5 Canvas for drawing
• Vanilla JavaScript for functionality
• CSS3 for styling and animations
• Google Gemini AI API for handwriting recognition

Key Components

• SmartCalculator class: Main application logic
• Canvas management system
• History tracking for undo/redo
• Touch and pointer event handling
• Responsive design system

Browser Support

• Chrome (recommended)
• Firefox
• Brave
• Safari
• Edge
• Opera

Security Considerations

• API key should be kept private
• Production deployments should use environment variables
• Implement rate limiting for API calls
• Consider adding user authentication for production use

Author

Ajit Kumar

Acknowledgments

• Google Gemini AI for the handwriting recognition API
• Contributors and testers who helped improve the application
• Open source community for inspiration and resources

Support

For support, please:

• Open an issue in the GitHub repository
• Contact the developer via GitHub
• Check the Wiki for additional documentation

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Made with ❤️ by Ajit Kumar