SYSTEMS OF EQUATIONS Gaussian Elimination (Page 9 of 13)

In column two we want to eliminate the 5 in the third position. We can do this simply by adding row two to row three, replacing row three with the result. The row+ command will do this. Enter the command, followed by the matrix name and the two row numbers. The calculator will ALWAYS replace the second row specified with the result of this operation. As usual, we save the result when finished.

 MATRX key. [MATH] Up arrow key. D: menu selection. MATRX key. 1: menu selection. Comma key. 2 Comma key. 3 Right parenthesis key.
 ENTER key.
Calculator screen image.
 CLEAR key.

 STO key. MATRX key. 1: menu selection. ENTER key.

Calculator screen image.
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