I like knowing what to call things. I learned a couple of new definitions.
When you bind a new value to an existing value name this is called outscoping.
let funName a =
let funName n =
funName with parameter n outscopes funName with parameter a.
Tuples have a special case for the 2-tuple. Dustin Campbell touched on this, but it seems to me that anytime we know a tuple is a 2-tuple it would be beneficial to refer to that tuple as a pair. A pair is a 2-tuple. Dustin showed that pairs are so special that the fst and snd functions can be used on them. These two functions work on pairs, not all tuples.
let maxProjectileDistanceVector = (Math.Sqrt(2.0)/2.0, Math.Sqrt(2.0)/2.0)
maxProjectileDistinceVector is a pair. Its a tuple too, but a pair is more specific.