Comment by nico

You definitely know a lot about mangling data with spreadsheets!

> Programmers are used to floating point numbers and the fact that properties like associativity don't apply, but that's not obvious to everyone

One of my first programming assignments in college was to simulate a pool table. I had to go ask the TA what the hell was wrong with my code, the balls would never bounce because their distances to anything were never 0… fun times