ELI5: Explain Like I'm 5

Affine arithmetic

Okay kiddo, have you ever played with blocks? You know how some blocks are bigger than others, and you can stack them up to make different shapes, right?

Well, think of affine arithmetic like playing with blocks. But instead of blocks, we use numbers. And instead of just adding and subtracting those numbers, we can also multiply and divide them.

But here's the tricky part: sometimes, we don't know exactly what those numbers are. We might know that they're between, say, 5 and 10, but we don't know the exact value.

So with affine arithmetic, we pretend that those numbers are still blocks. We don't know exactly how big they are, but we know they're somewhere in a certain range.

We can use these blocks to do math, but we have to be careful. If we add two blocks together, the result might be bigger or smaller than we expect, because we don't know exactly how big they are. So we have to make sure we take into account the possible ranges of those blocks when we do our calculations.

All this might seem a bit confusing, but affine arithmetic is actually a really useful tool for solving certain problems in math and computer science. It lets us work with uncertain or imprecise information, and still get useful results.