HP HP-11C

152 Section 10: Applications Programs
INPUT OUTPUT
STEP INSTRUCTIONS DATA/UNITS KEYSTROKES paTA/UNITS
3 Key in the 3 X 3 matrix 1. R,
in column order. ap R/S 2, R,
(Note: to leave the displayed value as K
in the register press [R/S]). a3 4, R,
812 5 Rs
82 6. Rg
a3 1. R
813 8, Rg
853 R/S 9, Ry
a33 Det.
To review the matrix press [A].
4 Input the column matrix. b, b,
by b,
by Xy
R/S X3
R/S X3
5 For new column matrix go to step 4.
6 For new 3 X 3 matrix go to step 3.
Example 1: Find the solution matrix for the following:
19 -4 -15| x; 40
-4 22 -10]| |xy =
-15 -10 26| x5
Keystrokes Display
CLEAR
Set User mode.
[f][FiIx]4
1.0000 0.0000