ELI5: Explain Like I'm 5

CORDIC algorithm

The Cordic algorithm is like playing a game of giving directions to a friend who wants to move from one point to another. Imagine you and your friend are standing in the same place on a big circle. Your friend wants to move to a specific point on the circle, but they can only move in two ways: straight up or straight down.

You can help your friend by telling them how far they need to move up, and then how far they need to move across. To do this, you'll need to think about the angle between your friend's starting point and their destination point, as well as the distance between those points.

The Cordic algorithm uses a similar idea to help computers calculate math problems that involve trigonometric functions (like sine and cosine). Instead of a circle, the algorithm uses a "hyperbolic plane" that looks kind of like a bunch of connected triangles. It breaks down a big math problem into many smaller, simpler problems, and solves each one step by step using the same process as the directions game.

The Cordic algorithm is useful because it's really fast and efficient, so computers can solve complex math problems without using up too much memory or processing power.