
Intro to matrices (article) - Khan Academy
Matrix is an arrangement of numbers into rows and columns. Make your first introduction with matrices and learn about their dimensions and elements. A matrix is a rectangular arrangement of numbers …
Matrices | Algebra (all content) | Math | Khan Academy
This topic covers: - Adding & subtracting matrices - Multiplying matrices by scalars - Multiplying matrices - Representing & solving linear systems with matrices - Matrix inverses - Matrix determinants - …
Intro to matrix multiplication (video) | Khan Academy
Sal explains what it means to multiply two matrices, and gives an example. Created by Sal Khan.
Multiplying matrices (article) - Khan Academy
When we multiply a matrix by a scalar (i.e., a single number) we simply multiply all the matrix's terms by that scalar. We can also multiply a matrix by another matrix, but this process is more complicated. …
Multiplying matrices (article) - Khan Academy
In order to mutiply two matrices, the number of columns in the first matrix has to be the same as the number of rows in the second matrix. Here, you're trying to multiply a 2x2 matrix by a matrix with 3 …
Matrix addition & subtraction (article) | Khan Academy
What you will learn in this lesson As long as the dimensions of two matrices are the same, we can add and subtract them much like we add and subtract numbers. Let's take a closer look!
Matrices | Precalculus | Math | Khan Academy
Learn what matrices are and about their various uses: solving systems of equations, transforming shapes and vectors, and representing real-world situations. Learn how to add, subtract, and multiply …
Understanding row and column matrix with examples
Ever wondered where row and column matrices show up in real life? In this video, we’ll uncover their practical applications, break down their definitions, and conclude with interesting examples that offer …
Types of matrices (video) | Week 1 | Khan Academy
In this video, we look at a few different types of matrices and how they form subsets of other types. We look at row matrices, column matrices, square matrices, diagonal matrices, scalar matrices, identity …
Matrix transformations | Linear algebra | Math | Khan Academy
Matrices can be used to perform a wide variety of transformations on data, which makes them powerful tools in many real-world applications. For example, matrices are often used in computer graphics to …