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4. Recall the descriptor of the matrix representing A into the display.
5. If the elements of A were entered in the form of A
p to transform A
6. Press ´> 2 to transform A
7. Designate the result matrix; it must not be the same as the matrix
representing A.
8. Press ÷; this calculates X
are placed in the result matrix, and the descriptor of the result matrix
is placed in the X-register.
9. If you want the solution in the form X
Note that you don't transform B
You can derive the complex elements of the solution X by recalling the
P
elements of X
described earlier.
Example: Engineering student A. C. Dimmer wants to analyze the
electrical circuit shown below. The impedances of the components are
indicated in complex form. Determine the complex representation of the
currents I
and I
1
This system can be represented by the complex matrix equation
or
Section 12: Calculating with Matrices
C
into A
C
or X
and combining them according to the conventions
.
2
10
200
i
200
i
P
.
P
into Ã.
P
. The values of these matrix elements
C
, press |c.
P
into .
200
i
I
1
(200
30)
i
I
2
AX = B.
C
5
0
169
, press ´
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