HP HP-15C - Checking and Changing Matrix Elements Individually

Section 4: Using Matrix Operations
143
You can also solve weighted least-squares problems and linearly
constrained least-squares problems using this program. Make the
necessary substitutions described under Orthogonal Factorization
earlier in this section.
Program mode.
Program to input new
row.
Stores weight in R2.
Stores / = 1 in Ri.
Stores k = p + 2 in R0.
Keystrokes
|T| CLEAR | PRGM |
[f][LBU][A]
[STOl2
1
rsToii
EQ1Q4
|RCL||DIM|[Al
|*Sy|
rsToio
miTBLlS
[Rcpi
[R/Sl
|RCL|2
s
[T|| USER HSTOlfAl
[T|| USER!
| GTO | 5
[GTCTU
Etna®
Display
000-
001-42,21,11
002- 44 2
003- 1
004- 44 1
005-42,21, 4
006-45,23,11
007- 34
008- 44 0
009-42,21, 5
010- 45 1
011- 31
012- 45 2
013- 20
01 4u 44 11
015- 22 5
016- 22 4
017-42,21,12
|RCL||DIMl[Al
QD[cF]o
|RCL|2
IRCLIO
018-45,23,11
019- 34
020- 44 2
021-42,16, 1
022-42,21, 1
023-43, 5, 0
024- 45 2
025- 45 0
026-45,43,11
027- 4511
Program to update
matrix A.
Recalls dimensions/) + 2
and/> + 1.
Stores/) + 2 in R2.
Sets k = 1 = 1.
Branch to update ith row.
Recalls ap + 2,k-
Recalls a\,i,.