Sharp EL-9900 - Manual (Page 131)

121
Chapter 8: Matrix Features
1. Press @ m to enter
the MATRIX menu.
2. Press B to select EDIT
and then 1 to select 1
mat A.
3. Press 3 E 4 E to
define the dimensions of the
matrix (3 rows
×
4 columns).
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 begin-
ning 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.
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 NAME
and press 1 to select 1
mat A. The Matrix A is now set and ready to be calculated.
PROCEDURE
Define
dimensions
Enter the values
Solve the
problem
Select a matrix
to edit