122
Chapter 6: Matrix Features
8. Press
@
m
to
display the MATRIX MENU,
and press
D
to select
D
MATH and then press
4
to select
4 rrowEF. The
reduced row echelon form is
now set, as shown:
9. Press
@
m
, then press
A
to select
A NAME and
press
1
to select
1 mat A. The Matrix A is now set and
ready to be calculated.
4. Press 3
E
2
E
1
E
3 9
E
to enter the
first row of
3x
+
2y
+
z = 39
.
The cursor will automatically
position itself at the beginning
of the second row.
5. Press 2
E
3
E
1
E
3 4
E
to enter the second
row of
2x
+
3y
+
z = 34
.
6. Press 1
E
2
E
3
E
2 6
E
to enter the
third row of
x
+
2y
+
3z = 26
.
7. Press
#
to return to the
calculation screen.
Matrix A is now set.
1. Press
@
m
to enter
the
MATRIX menu.
2. Press
B
to select
B EDIT
and then
1
to select
1
mat A.
PROCEDURE
Select a matrix
to edit
Define
dimensions
3. Press 3
E
4
E
to
define the dimensions of the
matrix (3 rows
×
4 columns).
Enter the values
Solve the
problem
