HP HP-15C

1 20 Section 4: Using Matrix Operations
Matrix
Input
Output
A
System
Matrix
System
Matrix
B
Right-Hand
Matrix
Corrected
Solution
C
Uncorrected
Solution
D
/.I/ Form
of A
Keystrokes
mfP/Rl
pf] CLEAR |PRGM|
|RCL||MATRIX||A|
|STO || MATRIX IfDl
|RCL || MATRIX || B|
|RCL || MATRIX"! [51
|T|| RESULT |[C1
B
Q] [RESULT] (T|
PHI MATRIX] 6
|RCL||MATRIX||D|
B
IRCL || MATRIX Ifcl
B
Display
000-
001-42,21,11
002-45,16,11
003-44,16,14
004-45,16,12
005-45,16,14
006-42,26,13
007- 1 0
008-42,26,12
009-42,16, 6
010-45,16,14
011- 10
012-45,16,13
013- 40
Program mode.
Stores system matrix
in D.
Calculates uncorrected
solution, C.
Calculates residual, B.
Calculates correction, B.
Calculates refined
solution, B.
014- 4332
Run mode.
Label used: A.
Matrices used: A, B, C, and D.
To use this program:
1. Dimension matrix A according to the system matrix and
store those elements in A.
2. Dimension matrix B according to the right-hand matrix and
store those elements in B.
3. Press |GSB| [A~| to calculate the corrected solution in matrix B.