![YouTube video](https://i.ytimg.com/vi/OgZ6gXnB9PA/hqdefault.jpg)
In the movie “The Thinning,” students have to take a test every year (on an applet), and the last few get “thinned out”=executed. There appears a bit of calculus and linear algebra: the product rule and linear equations appear. There is also a lens which solves the math in real-time.