An easy use Reimann Sum calculator
This app is a Reimann Sum calculator. It has been done in collaboration with the work of NSPostWhenIdle, although it hasn't been on github until now. The apps aren't identical, but serve the same purpose.
This app is written in C# 5.0 and as such depends on .Net 4.5 and the corresponding WPF version for the time being (pull requests to change this are welcome.)