But I had no intention on that account of attempting to master all the particular Sciences commonly denominated Mathematics: but observing that, however different their objects, they all agree in considering only the various relations or proportions subsisting among those objects, I thought it best for my purpose to consider these proportions in the most general form possible, without referring them to any objects in particular, except such as would most facilitate the knowledge of them, and without by any means restricting them to these, that afterwards I might thus be the better able to apply them to every other class of objects to which they are legitimately applicable.

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Space Invaders (Atari 2600 video game) (Wikipedia) Space Invaders is a 1980 video game based on Taito’s arcade game Space Invaders (1978) for the Atari 2600. It was developed and released by Atari, Inc. and designed and developed by Rick Maurer. The game is based on the arcade game in which a player operates a laser cannon to shoot at incoming enemies from outer space. Maurer’s version has unique graphics and offers some gameplay variations. These include a two-player mode and variations that allow for invisible enemies and moving shields, and for enemies shots to zig zag and potentially hit players.