Inverse matrices are very useful for solving matrix equations. But, given a matrix, how do you invert it? How do you find the inverse? The technique for inverting matrices is kind of clever. For a given matrix A and its inverse A-1, we...

Students learn about matrix multiplication. Topics examined are identity matrices and properties of matrix multiplication. The tutorial consists of class notes, examples, and practice problems. Review exercises and a chapter quiz are...

[Free Registration/Login may be required to access all resource tools.] This lesson covers using a graphing calculator and matrices to solve a system of equations.

Students can use a graphing calculator to explore transformations with matrices. They will analyze how each element of the matrix affects the position of the image.

Students learn about matrix addition and subtraction, and scalar multiplication. The tutorial consists of class notes, examples, and practice problems. Review exercises and a chapter quiz are included.

With several easy-to-understand examples worked out, this lesson demonstrates the steps needed to multiply a matrix by a scalar (a constant). True "Matrix multiplication," where two matrices are multiplied to eachother is also...

From Mathworld.com as site on Maxtricies. Includes formulas, definitions, and links to related articles.

A large set of problems present a variety of practice with matrix multiplication. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button...

Definitions, examples, and detailed explanation of matrix multiplication and the identity matrix.

Students learn how to find the inverse of a matrix. The tutorial consists of class notes, examples, and practice problems. Review exercises and a chapter quiz are included.

Information on polynomial matrices and their characteristics.

The lesson examines matrix multiplication. Students learn about notation, limitations, and the procedure to multiply matrices. An assessment is included to check for comprehension of the concept.

Nine problems present practice working with matrix transformations. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View Solution" button to check each...

Reference material with examples of how to solve system of equations by the matrix method.

Find the matrix that is the result of the addition or subtraction of two given matrices.

Learners demonstrate comprehension of advanced mathematical concepts in Algebra II. The questions check understanding on matrices. Topics include determinants and multiplicative inverses.

[Free Registration/Login may be required to access all resource tools.] This lesson covers solving a matrix equation.

Students explore operations with matrices. Topics examined are matrix addition, scalar multiplication, matrix multiplication, and identity matrices. Class notes and examples are included.

Demonstration of how an augmented matrix is used to solve a system of linear equations.

[Free Registration/Login Required] This lesson covers adding, subtracting matrices and equivalent matrices.

Purplemath explains each of the elementary row operations and goes through explaining how each step is carried out and the common notation for each operation. The lesson ends with an example of how to solve an augmented matrix.

[Free Registration/Login Required] This lesson looks at organizing data into a matrix, as well as identifying the different elements in a matrix.

Substitution matrices can be used to align two protein sequences.

This educational site from the University of St. Andrews contains information regarding the origins of the matrix. Some samples of the types of matrices used back in the earlier days are provided.