NerdCalci

NerdCalci is a powerful calculator designed for nerds and power users who need more than basic arithmetic.

Features:

- Offline - Works without internet
- Variable support - Define variables and reuse them in calculations
- Percentage calculations - Natural syntax like "20% of 50000" or "15% off 1000"
- Custom functions - Define your own functions with multi-statement support and scope isolation
- Dynamic variables - Quickly compute block sums (`total`) and averages (`avg`)
- Syntax highlighting - Color-coded numbers, variables, operators, and comments
- Smart error diagnostics - See human-friendly explanation of math or syntax errors
- Auto-completion - Smart suggestions for variable names
- Comments - Document your calculations with # comments
- Multiple files - Organize calculations in separate files with auto-save
- Pin files - Keep frequently used files at the top
- Search - Search your files easily
- Duplicate files - Create a copy of a file with a new name
- Undo/Redo - Up to 30 steps per file
- Backups - Automatically or manually backup your files to app storage or a custom folder
- Restore from backups - Restore your files from backups
- Copy with results - Copy calculations with their results
- Export - Share your calculations as a PNG image or a multi-page PDF
- Dark/light theme - System, dark, or light mode support
- Line numbers - Easy reference and navigation

Perfect for:

- Quick calculations with reusable values
- Budget planning and financial calculations
- Unit conversions and formulas
- Educational purposes and learning
- Any scenario where you need to document and reuse calculation values

NerdCalci combines the simplicity of a calculator with the power of a text editor. As a capable alternative to text-based calculators like Numi, Calca, and Soulver, it is ideal for developers, students, accountants, and anyone who frequently works with numbers.

Recent changes:
- Added support for rate and compound units with unit cancellation and conversions.
- Added bottom border divider to the last calculation row.
- Fixed `prev` and `total` re-evaluating `rand()` instead of preserving already computed values during incremental recalculation.
- Fixed numeral system conversions incorrectly multiplying input numbers by their base radix.
- Fixed non-numeric arguments being discarded or defaulting to zero when passed to global/cross-file functions.