In the first part of the series , I examined Newton-Lagrange interpolation, using functional language idioms. So far only F# have been put to the pit, but now Ruby and C# have dropped in. Geek alert : this post might become text-intensive and boring, however looking at the code itself should be enough to get the groove. Ruby This is everyone's favorite toy . And it has a good reason to be - it has most of the idioms functional languages use (and you'll see that by comparing the F# code),...