How to Write to a Position in an Array Variable

[peternlewis]

@tiffle

1. For an array of size N, setting any element -N-1, or -N-2, or -N-3 etc results in no change to the array and no error. I would have thought this should raise an error - @peternlewis ?

Yes, it should be an error.

It will also be an error to set an index more than 100 past the end of the array.