# Revision history for simple-expr

## 0.1.0.0 -- 2023-05-12

* Basic types `Backprop`, `StartBackprop` etc.
* Basic function backprrop derivative implementations.
* `Isomorphism` tyepclass and extra instances for `IsomorphicTo` typeclass from `isomorphism-class` package.
* Extra instancies for `Additive` typeclass from `numhask` package. 
* Tutorial