Oh this is SO COOL! I love the presentation and mechanics. And it works really great once you get it figured out. There's a lot of detail in here actually. The main map tab, the sensor tab, power, hull, and fuel all functional. All the treasure maps in the intel page and having the mathematical maps to each special location on the treasure maps. The visuals for all the machines and tabs are clean and clear. Very usable once you've figured out how it all works. I'm kind of crazy about this, it's super cool. It's a really neat "pull out a pen and paper and do some math and take notes" type game. The way the text announces enemies and if your missiles hit is great feedback while you're navigating around and looks and feels really cool too. The game overall has a great analog feel. I love the target, distance, and heading function for moving around. It's super useful for navigation and also for locating new points using pythagorean theorems. It works really great with the whole Pythagoras theme, which is charming, if not a little Math Circus-y. It's cool enough that it escapes the stigma that 'Educational Games' have.
The only thing I'd say is that I'd point new players towards the Intel tab a bit more when it starts so that they can get some instructions as it isn't immediately clear that it's an informational tab. I'd love to see how it looks when it's done!