Activities
747
Exploring a 3x3 Matrix
Exploring a 3x3 Matrix
Exploring a 3x3 Matrix
Exploring a 3x3 Matrix
Perform these steps to generate a random matrix, augment and find the identity matrix,
and then solve to find an invalid value of the inverse.
1. On the Home screen, use
RandSeed
to
set the random number generator seed to
the factory default, and then use
randMat( )
to create a random 3x3 matrix
and store it in
a
.
2. Replace the
[2,3]
element of the matrix
with the variable
x
, and then use the
augment( )
function, to augment the 3x3
identity to
a
and store the result in
b
.
3. Use
rref( ) to
“row reduce” matrix
b
:
The result will have the identity matrix in
the first three columns and
a^
L
1
in the last
three columns.
Note:
Use the cursor in the history area to
scroll the result.
Summary of Contents for TI-89 Voyage 200
Page 1: ...TI 89 Titanium Graphing Calculator...
Page 35: ...Getting Started 35 2 B u s i n e s s D B D B Press Result...
Page 44: ...Getting Started 44 3 0 D B D D Press Result...
Page 45: ...Getting Started 45 B D D 2 0 0 2 Press Result...
Page 46: ...Getting Started 46 D B Scroll down to October and press D 1 9 Press Result...
Page 60: ...Getting Started 60 Example Set split screen mode to TOP BOTTOM Press Result 3 B D...
Page 63: ...Getting Started 63 2 D B 4 Press Result...
Page 453: ...Differential Equation Graphing 453...
Page 468: ...Tables 468...
Page 539: ...Data Matrix Editor 539...