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HP HP-15C Advanced Functions Handbook

HP HP-15C
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Section
4:
Using
Matrix
Operations
147
8.
Optionally, press
[c"l
fg~l
[3
to
calculate
and
display
the
residual
sum of
squares
q2 and to
calculate
the
current
solution
b.
Then press
iRCLlfclp
times
to
display
61;
62>...,
bp
in
turn.
9.
Repeat steps
5
through
8 for
each additional row.
Example:
Use
this
program
and the CPI
data
from
the
previous
example
to fit the
model
y
=
bl
+
b2x2
+
b3x3
+ r,
where
y,
x2,
and
xs
represent
the
CPI,
PPI,
and UR
(all
as
precentages).
This problem involves
p = 3
parameters,
so
matrix
A
should
be
5X4.
The
rows
of
matrix
A are (1,
xm2,
Xm3>
Vm)
r
w
= 1,
2,...,
11.
Each
row has
weight
wm
= 1.
Keystrokes
OiSTO||MATRIX|[A"|
3.9|R/S|
5.4
I
Display
2.0000
2.0000
2.0000
4
4.0000
0.0000
1.0000
2.0000
3.0000
4.0000
1.0000
5.0000
Run
mode.
Reserves
R0
through
R2.
Activates User mode.
Clears matrix memory.
Dimensions matrix
A to
5X4.
Stores
zero
in all
elements.
Enters weight
for row 1.
Enters
xn.
Enters
x12.
Enters
x^.
Enters
yj.
Updates factorization.
1|R/S|
19.3[R7s1
5.8|R/S|
11.5fR7sl
1.0000
2.0000
3.0000
4.0000
1.0000
5.0000
Enters weight
for row
11.
Enters
x.
Enters
xn
3.
Enters
yn.
Updates factorization.

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HP HP-15C Specifications

General IconGeneral
BrandHP
ModelHP-15C
CategoryCalculator
LanguageEnglish

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