
To insert a column:
1. Move the cursor to the column where you want the new column
inserted.
2. Press +CijL . A column of zeros is inserted.
Example: Change the matrix in the first example of this chapter
from
■ 2 -2 O' ■ 2
-2
4 0 ■
1
0
3 to 1 0 1
3.1
-3 5
1.
.-3 5 3 1
1: If the matrix is on the stack, bring it into level 1—otherwise,
enter the matrix into level 1. Then view the matrix in the
MatrixWriter environment. (This example assumes GO-s-s
is active.)
® (or enter the matrix)
Step 2: Edit element 2-3:
®(E)®
EDIT (FI .1 (ENTER)
B “
-1
0
B
_____
1
0 3.1
5 1
Pi! -3
Step 3: Insert a new column in front of column 3, and move the cell
cursor to the t.op of the new column.
®(Q(NXT) +l:uL (A)®
8-6 The MatrixWriter
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