HP 15c - Manual (Page 132)

132 Section 4: Using Matrix Operations
132
Keystrokes Display
l>C 024-45,16,13
O>Á 025-44,16,14 Stores z
(n)
in D.
O< 026- 44 26
l>B 027-45,16,12
÷ 028- 10 Calculates w
(n+1)
in C.
v 029- 36
´>7 030-42,16, 7
÷ 031- 10 Calculates ±z
(n+1)
in C.
´>1 032-42,16, 1
´b7 033-42,21, 7 Routine to find sign of largest
element.
´UlC
´U 034u 45 13
v 035- 36 (This line skipped for last
element.)
|a 036- 43 16
1 037- 1
|T6 038-43,30, 6
Tests |a
j
|≠1
t7 039- 22 7
l>C 040-45,16,13
|K 041- 43 36 Recalls extreme a
j
.
÷ 042- 10 Calculates z
(n+1)
in C.
l>Á 043-45,16,14
O< 044- 44 26
- 045- 30
Calculates z
(n+1) －z (n)
in D.
´>7 046-42,16, 7 Calculates ||z
(n+1) －z (n)
||
R
.
´>1 047-42,16, 1
Sets R
0
＝R
1
＝1 for viewing C.
¦ 048- 31 Displays convergence
parameter.
t6 049- 22 6
Labels used: C, 4, 5, 6, and 7.
Registers used: R
0
, R
1
, and R
2
(eigenvalue).
Matrices used: A (original matrix), B (A − λI), C (z
(n+1)
), and D (z
(n+1)
− z
(n)
).
To use this program:
1. Press 2 ´m% to reserve registers R
0
, R
1
, and R
2
.
2. Press ´U to activate User mode.