Roman to Decimal Converter

Roman to Decimal Converter

Difficulty :beginner

Learn about number systems and algorithms by building a converter that transforms Roman numerals to decimal numbers and back. This project teaches you about different number systems and conversion algorithms.

Roman numerals are still used today in various contexts, making this a practical and educational project.

User Stories:

  • User can enter a Roman numeral and see the decimal equivalent
  • User can enter a decimal number and see the Roman numeral equivalent
  • User can see error messages for invalid Roman numerals
  • User can see error messages for numbers outside the valid range (1-3999)
  • User can clear the input and start over

Bonus Features:

  • User can see a reference chart of Roman numeral rules
  • User can practice with random Roman numeral quizzes
  • User can see the step-by-step conversion process
  • User can handle both uppercase and lowercase input
  • User can convert ranges of numbers at once
  • User can see historical context about Roman numerals
  • User can export conversion results
  • User can work with larger numbers using extended notation

What you'll learn:

  • Number system conversion algorithms
  • String parsing and validation
  • Regular expressions for input validation
  • Mathematical operations and logic
  • Algorithm optimization
  • Historical number systems
  • Input sanitization and error handling
  • User interface design for calculators
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