ELI5: Explain Like I'm 5

Interior product

Alright kiddo, you know how some things can slide past each other easily, like when you slide your toy car across the floor? And other things always stay stuck together, like when you use tape to stick a piece of paper to the wall?

Well, when we talk about the interior product, we're talking about how two different things can stick together or "multiply" in a certain way. In math, we use special symbols to show this multiplication.

For example, imagine we have a flat piece of paper with arrows drawn on it. One arrow is pointing to the right, and the other is pointing up.

If we use the symbol for the interior product between those two arrows, it means we're "multiplying" them together in a special way. The result is a new arrow that's kind of like a mix of the two original ones. It might be angled a certain way, depending on how the original arrows were angled.

This special kind of multiplication comes in handy when we're working with things like shapes or forces, because we can use it to find out new information about how different pieces are related to each other.

So, that's basically what the interior product is all about. It's not quite like regular multiplication, but we can use it to help us explore and understand different parts of the world around us!
Related topics others have asked about: