polynomial addition

polynomial addition is a DSA topic. In plain words you use it for a short polynomial addition example in a short dry-run on paper. Don’t start with a slogan — start with that picture.

Smallest example: the smallest polynomial addition example you can type. Type it, run it, and say what you see. If you can do that from memory, you know polynomial addition.

From the example next to this theory — polynomial addition: dry-run [4, 1, 3].

Trap — only saying “polynomial addition” with no example. Fix that before you talk about advanced DSA.

Viva — what is polynomial addition? Then show the smallest polynomial addition example you can type. Then name the trap.