pnc-engine 0.2.0

Core engine for PNC: arbitrary-precision RPN evaluation, units, and persistence
Documentation
# PNC (Polish Notation Calculator)

A fast, fully offline, terminal-only reverse Polish notation (RPN) calculator written in Rust. Inspired by Orpie.

## Quick start

```sh
cargo build
./target/debug/pnc 4 5 +
```

## Documentation

- [Documentation index]docs/README.md
- [Design document]docs/pnc.md
- [Persistence format]docs/persistence.md
- [Architecture]docs/architecture.md

## License

MIT OR Apache-2.0