Merge pull request #1862 from neogenie/patch-1

Add fustnum

Author: palfrey

README.md

@@ -1118,6 +1118,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
 * [calebwin/emu](https://github.com/calebwin/emu) - A language for GPGPU numerical computing
 * [dimforge/nalgebra](https://github.com/dimforge/nalgebra) - low-dimensional linear algebra library
 * [faer-rs](https://github.com/sarah-quinones/faer-rs) [[faer](https://crates.io/crates/faer)] - Linear algebra foundation for Rust
+* [fastnum](https://github.com/neogenie/fastnum) [fastnum](https://crates.io/crates/fastnum) - Fast exact precision decimal numbers implemented in pure Rust. Suitable for financial, crypto and any other fixed-precision calculations.
 * [GSL](http://www.gnu.org/software/gsl/)
   * [GuillaumeGomez/rust-GSL](https://github.com/GuillaumeGomez/rust-GSL) - GSL bindings
 * [LAPACK](https://en.wikipedia.org/wiki/LAPACK)