# financial-calcs

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A lightweight, reusable TypeScript library to perform financial calculation.  This package contains **pure calculation functions** for:

- [Federal Employee Retirement System (FERS) Pension projection](./src/pension/README.md)
- [Retirement Savings projection](./src/retirement/README.md)
- [Social Security Benefit projection](./src/socialSecurity/README.md)
- [Mortgage Amortization](./src/mortgage/README.md)

All functions are decoupled from UI logic and can be used in any TypeScript or JavaScript project.

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## Installation

```bash
npm install financial-calcs
```

or with Yarn:

```bash
yarn add financial-calcs
```

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## Notes

- All functions are **pure** and have no side effects.
- Ideal for use in React, Vue, Node.js, or any TypeScript/JavaScript environment.
- Works well for building projection tables, charts, or integrating into financial planning tools.

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## Contributing

If you want to contribute:

1. Fork the repository
2. Make your changes in a separate branch
3. Add unit tests
4. Open a pull request

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## License

MIT