# Identity Matrix

Related Topics:
More Lessons for Algebra

Math Worksheets

Videos, worksheets, games and activities to help Algebra students learn about the identity matrix.

The Identity Matrix :
When dealing with matrix computation, it is important to understand the identity matrix. We can think of the identity matrix as the multiplicative identity of square matrices, or the one of square matrices. Any square matrix multiplied by the identity matrix of equal dimensions on the left or the right doesn't change. The identity matrix is used often in proofs, and when computing the inverse of a matrix.

This video introduces the identity matrix and illustrates the properties of the identity matrix.
Learn what is an Identity Matrix

2x2 Identity Matrix
Identity Matrix

The Identity Matrix is a square matrix with zeros everywhere except on the main diagonal, which has all elements equal to one. It is the product of a matrix and its inverse.
Learn about the identity matrix.

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.