If , find
The following are the steps than can be taken to change a matrix into reduced row echelon form (rref): Multiply a row by a scalar quantity.Switching one row’s position with another.Adding one multiple of a row to another multiple of a row. Create an augmented matrix with the original matrix on the left and an identity matrix on the right. The dotted line is just there to distinguish between the different sides.
Press |ON| Press |2ND| and | | to access the matrix menu. Arrow to “EDIT” tab. Highlight [A] and press |ENTER|. Type “3”, |ENTER|, “3”, |ENTER|. This will set the dimensions of the matrix. You are now ready to insert the entries of matrix O from the previous example. Type each value starting from the top-left working right, pressing |ENTER| will tab to the next position. Press |2ND| |MODE| to return to the home screen. Press |2ND| and | | to access the matrix menu. [A] is highlighted, press |ENTER| to select it. Press | | for the inverse function. Press |ENTER| for it to calculate. Use the arrow keys to move right and see the other values in the matrix. To express answers in fractional form, press |MATH|. Press |ENTER|. Press |ENTER| for it to calculate.