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E-15
kCreating a Matrix
To create a matrix, press A
j
1(Dim), specify a matrix
name (A, B, or C), and then specify the dimensions
(number of rows and number of columns) of the matrix.
Next, follow the prompts that appear to input values that
make up the elements of the matrix.
You can use the cursor keys to move about the matrix in
order to view or edit its elements.
To exit the matrix screen, press
t.
MAT
Matrix Calculations
The procedures in this section describe how to create
matrices with up to three rows and three columns, and
how to add, subtract, multiply, transpose and invert
matrices, and how to obtain the scalar product,
determinant, and absolute value of a matrix.
Use the
F key to enter the MAT Mode when you want
to perform matrix calculations.
MAT.....................................................
F F F 2
Note that you must create one or more matrices before
you can perform matrix calculations.
•You can have up to three matrices, named A, B, and C,
in memory at one time.
• The results of matrix calculations are stored automatically
into MatAns memory. You can use the matrix in MatAns
memory in subsequent matrix calculations.
• Matrix calculations can use up to two levels of the matrix
stack. Squaring a matrix, cubing a matrix, or inverting a
matrix uses one stack level. See “Stacks” in the separate
“User’s Guide” for more information.
M
atA
23
2 rows and 3 columns