A "minor" is the determinant of the square matrix formed by deleting one row and one column from some larger square matrix. To find the determinant of the matrix A, you have to pick a row or a column of the matrix, find all the cofactors...

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.

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.

Students learn about matrices and systems of equations. Topics explored are elementary row operations, Gaussian elimination, row-echelon form, and systems with infinitely many solutions. Class notes and examples are included.

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

This lesson presents how to use elementary row operations to solve for a system of linear equations. It is 4 of 4 in the series titled "Using Elementary Row Operations to Solve for Systems of Equations."

This lesson presents how to use elementary row operations to solve for a system of linear equations.

Mathworld provides a three step explanation of Gauss-Jordan elimination. To help you better understand the process, you can click on any of the highlighted terms for definitions.

An explanation is provided regarding Gauss-Jordan method, along with a thorough example showing every step from the original system of equations to the final solution.

The calculator program allows learners to pivot on any entry in a matrix and perform simplification.

In this lesson, the Gaussian Elimination method is used to solve systems of linear equations. Provides several formulas and examples for understanding.

The learning tool investigates the Gauss-Jordan method. The tool performs row operations and reduces matrices.

This is a worksheet in a pdf format on Semantic Feature Analysis. The worksheet, or matrix, is divided into boxes in three rows with four columns across.