2025-06-12

Added #

• Initial Release of quantify v0.1.0
• Core Functionality:
  • Type-safe Quantity base class for representing physical quantities with a value and a unit.
  • Unit interface for defining conversion factors and symbols.
  • Immutable Quantity objects.
  • double precision for quantity values.
  • Elegant API with extension methods on num for quantity creation (e.g., 10.m, 20.celsius).
  • Extension methods on Quantity for easy value retrieval in target units (e.g., length.inKm) and for obtaining new Quantity objects in target units (e.g., length.asKm).
  • Configurable toString() method on Quantity objects supporting:
    • Conversion to a targetUnit before formatting.
    • Fixed fractionDigits.
    • Option to showUnitSymbol.
    • Custom unitSymbolSeparator.
    • Locale-aware number formatting via locale parameter (using intl package).
    • Full control over number formatting via numberFormat parameter (using intl package).
  • Arithmetic operations (+, -, * by scalar, / by scalar) for most quantities.
  • Specialized arithmetic for Temperature (difference T - T returns double, ratio T / T returns double).
  • Comparable interface implementation for sorting quantities by magnitude.
  • == operator override for value and unit equality.
• Supported Quantity Types (with units and extensions):
  • Length: Meter (m), Kilometer (km), Centimeter (cm), Millimeter (mm), Inch (in), Foot (ft), Yard (yd), Mile (mi), Nautical Mile (nmi).
  • Time: Second (s), Millisecond (ms), Minute (min), Hour (h), Day (d).
  • Temperature: Kelvin (K), Celsius (°C), Fahrenheit (°F). Handles affine conversions correctly.
  • Pressure: Pascal (Pa), Atmosphere (atm), Bar (bar), PSI (psi), Torr, mmHg, inHg, kPa, hPa, mbar, cmH₂O, inH₂O.