In this lesson we discuss how to solve matrix equations in the form of AX=B and XA=B, where A,X, and B are matrices.
In this lesson we show you where the inverse of a matrix formula comes from.
This is a quicker way of finding the inverse of a matrix if you have a TI-83 graphics calculator.
In this tutorial you learn how to find the inverse of a matrix (when a matrix is multiplied by its inverse, you will get the identity matrix as the answer).
In this lesson we introduce you to the definition of identity matrix I, such that when it is multiplied by another matrix A, AI=A and IA=A.
In this lesson we talk about how to multiply 2 matrices together. We go through a real life example of when this could be used and we talk about the situations when 2 matrices can be multiplied (conformable),
In this lesson we learn how to do scalar multiplication (multiply a matrix by a scalar quantity), and how to solve a simple matrix equation involving scalar multiplication and addition/subtraction.
Today we show you how to add and subtract matrices. Note: You can only add/subtract matrices if they have the same number of rows and columns.
In this lesson we introduce you to the idea of matrices (an object containing an array of numbers). We also talk about some properties / features of matrices.
Magic Monk’s Real Life Maths lessons focus on using real life situations to teach maths, so it will help you understand the abstract mathematical concepts as well as be able to apply it to other real life contexts. In this lesson you will learn about matrix addition and subtraction, using a real life problem.