
3. You can increase your matrix at any time, adding columns and rows as you please. You can also delete an
entire row or column. Just place the cursor on the ± symbol at the end of a row or column. Then press
to insert a new row or column, or to delete the row or column. You can also press
to delete a row or column. In the gure above, pressing would delete the second row of
the matrix.
4.
When you are nished, press and the matrix will be displayed in the History. You can then
use or name your matrix.
Working with matrices 521
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