HP 15c - Manual (Page 109)

Section 4: Using Matrix Operations 109
Keystrokes Display
´mA 8.0000 Dimensions matrix A to
4 × 8.
´>1 8.0000
´U 8.0000 Activates User mode.
100
OA 100.0000 Stores Re(a
11
).
150
v 150.0000
800 v3÷ 266.6667
-OA -116.6667 Stores Im(a
11
).
⋮
150
v 150.0000
8
v3÷ 2.6667
-OA 147.3333 Stores Im(a
44
).
l>A A 4 8
´p A 8 4 Transforms A
C
to A
P
.
´>2 A 8 8
Transforms A
P
to .
~
A
O< A 8 8
´⁄ A 8 8
Calculates inverse of A
~
in A.
Delete the second half of the rows of A to provide space to store the right-hand matrix B.
Keystrokes Display
4
v8 8
´mA 8.0000 Redimensions matrix A to
4 × 8.
4 v2 2
´mB 2.0000 Dimensions matrix B to
4 × 2.
´>1 2.0000
10
OB 10.0000 Stores Re(V). (Other elements
are 0.)
l>A A 4 8
l>B b 4 2
´p b 8 1 Transforms B
C
to B
P
.
´>2 b 8 2
Transforms B
P
to B
~
.
´ b 8 2
* C 4 2 Calculates solution in C.
´>4 C 2 4 Calculates transpose.
´>2 C 2 8
Transforms C to C
~
.