Mathos is a collection of tools for any kinds of mathematical calculations. It allows you to work with shapes, finance, unit conversions, and more!
PM> Install-Package Mathos
Mathos is single library that contains different functions in areas like: Arithmetic, Coordinate Geometry, Fractions. For the moment, it's not quite finished, and more features will be added.
Documentation: http://mpapidocs.azurewebsites.net/mathos-core-library/