Texas Instruments TI-83 Manual Book page 260

Í
4. Press
2
first row for X + 2Y + 3Z = 3.
Í
5. Press
2
the second row for 2X + 3Y + 4Z = 3.
6. Press y 5 to return to the home screen. If
necessary, press ' to clear the home
screen. Press y > ~ to display the
MATRX MATH
of the menu. Select
home screen.
7. Press y >
MATRX NAMES
reduced row-echelon form of the matrix is
displayed and stored in
1X N 1Z = L3
1Y + 2Z = 3
TI-83 Plus Matrices
Í Í to complete the
3 3
Í Í
3 4
menu. Press } to wrap to the end
B:rref(
to select
1
menu. Press ¤ Í. The
Ans
therefore
therefore
Í to enter
3
to copy to the
rref(
from the
1: [A]
.
X = L3 + Z
Y = 3 N 2Z
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