sign-0.4.4: README.md
sign
====
[](http://travis-ci.org/msakai/sign) [](https://ci.appveyor.com/project/msakai/sign/branch/master) [](https://hackage.haskell.org/package/sign) [](https://coveralls.io/r/msakai/sign)
[](https://opensource.org/licenses/BSD-3-Clause)
Arithmetic over signs (i.e. {-,0,+}) and sets of signs