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244
Chapter 19: Applications
Displaying the result matrix
elements to 11 decimal
places illustrates accuracy.
Using Math Operations with Matrices
In the matrix editor, enter matrix
On the home screen, select
To append a 3×3 identity matrix to matrix
MATRX OPS
menu, enter
menu, and then enter
Enter
Ans
(to which the matrix from step 3 is stored). Define a
submatrix that contains the solution portion of the result. The
submatrix begins at element (1,4) and ends at element (3,6).
Select
4Frac
from the
fractional equivalent of the submatrix.
Check the result. Set the decimal mode to 11 (the last
round
from the
MATH NUM
fractional equivalent of the submatrix times
A
as shown.
rref
from the
MATRX OPS
A
, select
A
, select
ident
from the
3
. Execute the expression.
MATH MISC
menu and display the
menu for the product of the
.
A
menu.
aug
from the
MATRX OPS
1
) Select
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