Can someone explain "block multiplication" to me? It's not in the book, except in the context of a question as follows:(adsbygoogle = window.adsbygoogle || []).push({});

So the rule is that Matrix [A B] * colum matrix [C D] = [AC+BD] And I am supposed to verify it. but can I just ask how I would go about doing that since I really don't know what block multiplication does or what I'm supposed to multiply? Thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Block Multiplication

**Physics Forums | Science Articles, Homework Help, Discussion**