Chapter 3: Matrices

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Some links are repeated for use with more than one lesson.

The following links are applicable to the entire chapter.

http://www.sosmath.com/matrix/matrix.html

This page contains links to several topics involving matrices including applications.

http://edhelper.com/Matrices.htm

This page contains free printable practice worksheets on various matrix topics.

3.1 Matrix operations

http://www.gseis.ucla.edu/courses/ed231a1/notes/mat11.html

This page contains a quick reminder of basic matrix topics.

3.2 Matrix Multiplication

http://www.purplemath.com/modules/mtrxmult.htm

This page contains a tutorial on matrix multiplication and an animation on how to use your hand to keep track of the steps.

http://www.mai.liu.se/~halun/matrix/

This page contains an tutorial on matrix multiplication .

http://www.easycalculation.com/matrix/matrix-multiplication.php

This page contains a matrix calculator that shows the steps.

3.3 Determinants

http://www.purplemath.com/modules/determs.htm

This page contains a tutorial with animation on finding determinants.

3.4  Inverse and Identity Matrices

http://chortle.ccsu.edu/VectorLessons/vmch16/vmch16_1.html

This page contains an introduction to identity and inverse matrices as well as guiding questions.

http://people.richland.edu/james/lecture/m116/matrices/inverses.html

This page contains a shortcut for finding the inverse of a matrix and steps for using a calculator.

3.5 Cramer’s Rule

http://www.wisc-online.com/objects/index_tj.asp?objID=TMH1401

This page contains an interactive tutorial on Cramer’s Rule.