172 Section 12: Calculating with Matrices
1. Store the elements of
A
in memory, in the form either of
A
P
or of
A
C
.
2. Recall the descriptor of the matrix representing
A
into the display.
3. If the elements of
A
were entered in the form
A
C
, press
´
p
to transform
A
C
into
A
P
.
4. Press
´>
2 to transform
A
P
into
Ã
.
5. Press
O<
to designate the matrix representing
A
as the
result matrix.
6. Press
∕
to calculate (
Ã
)
-1
.
7. Redimension
A
to have half the number of rows as indicated in the
display of its descriptor after the preceding step.
8. Store the elements of
B
in memory, in the form either of
B
P
or
of
B
C
.
9. Recall the descriptor of the matrix representing
A
into the display.
10. Recall the descriptor of the matrix representing
B
into the display.
11. If the elements of
B
were entered in the form
B
C
, press
´p
to
transform
B
C
into
B
P
.
12. Press
´>
2 to transform
B
P
into
13. Designate the result matrix; it must not be the same matrix as either
of the other two.
14. Press
*
.
15. Press
´>
4 to transpose the result matrix.
16. Press
´>
2.
17. Redimension the result matrix to have half the number of rows as
indicated in the display of its descriptor after the preceding step.
18. Press
l<
to recall the descriptor of the result matrix.
19. Press
´>
4 to calculate
X
P
.
20. If you want the solution in the form
X
C
, press
|c
Summary of Contents for HP-15C
Page 1: ...HP 15C Owner s Handbook HP Part Number 00015 90001 Edition 2 4 Sep 2011 ...
Page 17: ...Part l HP 15C Fundamentals ...
Page 64: ......
Page 65: ...Part ll HP 15C Programming ...
Page 118: ...118 ...
