Version History - SciCalc Scientific Calculator

January 13, 2026

Unit Converter

Added comprehensive unit conversion system with 10 categories
Supported categories: length, mass, volume, temperature, time, speed, area, energy, pressure, data
Conversion syntax: 5_kg → lb converts 5 kilograms to pounds
Unit arithmetic: 5_km + 3_mi → km adds and converts units
Keyboard shortcuts: ALPHA+SPC types underscore, ALPHA+0 types arrow
Created unit-converter.html documentation page

November - December 2025

Complex Numbers & Improvements

Full complex number support with arithmetic (+, -, *, /), power, sqrt, trig, log
Input formats: 3+2i, (3,4) rectangular, (5;45) polar
Helper functions: re(), im(), mag(), arg(), conj()
sqrt(-1) now returns i instead of NaN
Fixed polar notation parsing for expressions like (2;90)
Added comma as shifted 0 key for rectangular notation
Semicolon support in function arguments (European notation)
Changed multiplication display from * to multiplication sign
Added robots.txt for SEO

November 2025

PWA Enhancements & Bug Fixes

November 2025

Initial Release

SciCalc Version History