Here's an update. It's really minor stuff. I think I'm close to submitting this. I need to review the process, as it's been so long since I started!

Gallery Link

OK, I was imagining the Heron formula for calculating the area of a triangle. Your idea makes more sense!

I'm not sure it would help much, but I did something similar in XP. It's not the same thing, but perhaps a similar kind of problem. The distance formula isn't used, I think, but it could be done very easily in C.

This is ProFantasy's Black Friday!

I think the first one is excellent. They're both good, but the first one made me look again a few times. The waterfalls look great.

Turbo speed can be automatic or manual depending on the motherboard and drivers.