Usage examples

[cfelde]

I'm working on a few use case examples showing how the REPL can be used together with Excel to solve problems, illustrate solutions, educate users, etc. I think this is something anyone can help out with, so if you have ideas or suggestions please feel free to help out.

I hope to have one example or two committed in not too long, which might help illustrate further.

[cfelde]

Added first example: k-means clustering algorithm.