This is the first prime-number program I've seen to ever have a graphical application of the Sieve of Eratosthenes. It's pretty interesting, but this program has more of a feeling of experimentation than anything else.
This program can be VERY slow when drawing the Sieve, fortunately, the Sieve is provided for you if you do not wish the calculator to draw it. Beyond that there is a program that displays every prime number from 2 to the max limit of numbers, which I assume was around 5985 or so. The only useful program was the third, which told you if a number you provided was prime or not by returning a one or zero.
The lack of decent documentation may be a hamper to this programmer, as it was very badly written and I had a hard time understanding how the program was used. It was not particularly user-friendly. I would like to see it modified a bit with better documentation and more optimized programming. I think that had ticalc been more selective, it might have not made it.
If you're some sort of mathematician or some geeky math teach then this program might be worth a fraction of your interest. But I honestly wouldn't recommend it to anyone.
Like most programmers, this guy has potential (if not particularly ambitious), he just has yet to use it. It's hard to quantify this program without a set standard, so I won't to avoid skewing anyone's opinion.
