# LetsBeRational [![Build Status](https://travis-ci.com/ghais/LetsBeRational.svg?branch=main)](https://travis-ci.com/ghais/LetsBeRational) [![Haskell CI](https://github.com/ghais/LetsBeRational/actions/workflows/haskell.yml/badge.svg)](https://github.com/ghais/LetsBeRational/actions/workflows/haskell.yml) [![Hackage](https://img.shields.io/hackage/v/LetsBeRational.svg?logo=haskell)](https://hackage.haskell.org/package/LetsBeRational) [![Stackage Lts](http://stackage.org/package/LetsBeRational/badge/lts)](http://stackage.org/lts/package/LetsBeRational) [![Stackage Nightly](http://stackage.org/package/LetsBeRational/badge/nightly)](http://stackage.org/nightly/package/LetsBeRational) [![MIT license](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE) Haskell binding for Jaekel's "Let's be Rational" implied volatility calculation