HP 15c Collector's Edition Owner's Handbook Manual page 179

*
Example:
Z P B
Keystrokes
l > A
l > B
´ < C
*
´ U
l C
l C
l C
l C
l C
l C
l C
l C
´ U
Section 12: Calculating with Matrices
Ỹ X P
X P
XY P YX
ZZ
Display
A 4 4
b 4 2
b 4 2
C 4 2
C 4 2
C 1,1
1.0000
-2.8500 -10
-4.0000 -11
1.0000
1.0000 -11
3.8000 -10
1.0000 -11
-1.0500 -10
-1.0500 -10
YX P
YX C
X̃
C
Z
A
B
C
c
c
c
c
c
c
c
| c
YX
Z̃ A
C
Z̃ Z P ZZ
167
P