MATRICES Matrix Operations (Page 7 of 8)

It is also easy to multiply matrices. Let's find the products AC and CA.

 CLEAR key.

 MATRX key. 1: menu selection. Multiply key. MATRX key. 3: menu selection. ENTER key.

 Calculator screen image.
 MATRX key. 3: menu selection. Multiply key. MATRX key. 1: menu selection. ENTER key.

 1: menu selection. (Quit)

 Calculator screen image. Calculator screen image.

Notice that AC is defined, but CA is not (as indicated by the error message). It is important to remember that matrix multiplication is NOT commutative!
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