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INSTRUCTORS Carleen Eaton Grant Fraser
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For more information, please see full course syllabus of Algebra 2
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Lecture Comments (4)

0 answers

Post by Karen Iversen on March 7, 2013

What is some applications of these to the real world? Iv'e been trying to associate these with an application in the real world, but I can't think of anything.

2 answers

Last reply by: Arshin jain
Mon Aug 6, 2012 7:22 PM

Post by gengiz olcaytore on May 10, 2011

ex 2 row 1 col 1 in answer should be 8.

Thanks for making these!

Matrix Multiplication

  • Matrix multiplication is defined if and only if the number of columns of the first matrix is equal to the number of rows of the second matrix.

  • Matrix multiplication is associative and satisfies the left and right distributive properties.

  • Matrix multiplication is not commutative.

Matrix Multiplication

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Dimension Requirement 0:19
    • Example
  • Matrix Multiplication 1:35
    • Example
  • Properties of Matrix Multiplication 6:46
    • Associative Property
    • Distributive Property
    • Commutative Property
  • Lecture Example 1 8:49
  • Lecture Example 2 11:43
  • Additional Example 3
  • Additional Example 4