MA, Stanford University
Teaching in the San Francisco Bay Area
Alissa is currently a teacher in the San Francisco Bay Area and Brightstorm users love her clear, concise explanations of tough concepts
Matrices can only be multiplied if the number of columns in the first equals the number of rows in the second. Note that AB does not equal BA when it comes to matrices. One tip for keeping this all organized is to vertically align the matrices. Multiply the corresponding elements, adding products to find the resultant elements.
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