Introduction to Matrix Multiplication

This video presents the steps used to multiply two matrices, and it does this using a weighted decision formula example. Who knew we could pick our favorite dog breed using math?

Timestamps
00:00 | Intro
00:10 | Weighted Decision Formula Example
03:34 | Matrix Representation of Option Attribute Scores
03:48 | Matrix Representation of Attribute Weights
05:49 | Demonstration of a Matrix Multiplication
10:03 | Details of Matrix Multiplication
11:40 | Another Demonstration of a Matrix Multiplication
14:18 | Matrix Multiplication DOES NOT Adhere to Commutative Law
16:05 | Matrix Multiplication DOES Adhere to Associative Law
16:44 | Matrix Multiplication Version of the Distributive Law
17:00 | More on Commutative Law NOT Applying to Matrix Multiplication
17:56 | Matrix Multiplication and the Identity Matrix
19:57 | Additional Properties of Transposition
21:14 | Demonstration of the Multiplicative Inverse of a Matrix

Hashtags
#matrix #multiplication #inverse