Casio fx-3800P - Power Regression Analysis; Programmed Calculations; Storing and Executing Programs

OPERATION
READ-OUT
—_—_—_e
SSS
EAD-OUT
“LR”
SH)
ef
6
F)
9
@aay
210467
im
om
120
9@a
15027
ga
in
oT
199
8ea
120
1
Si
om
2607
Ga
SO
Sanh
om
3503
1&
50
2en
hm
oM
3.063390922
2.493205453
2.140066164
1.648658626
(SH
(4)
SHE}
|
30.49758743
(A)
—0.0492037
(B)
—0.99724735
(r)
(When
xi
is
16)
169)
GME)
|
13.87915739
(¥)
(When
yi
is
20)
2067
@aN®!
857486805
(x)
Power
regression
Formula:
v=Acx#
*
Input
data
items
are
Inx
and
Iny.
“
Operation
for
correction
is
basically
the
same
as
in
linear
regression.
Operate
(uF)
(A)
to
obtain
coefficient
A,
x
(io)
@)
GF
&}
for
estimator
¥,
and
y
GH
(in)
Sart)
(@)
GH
4)
for
estimator
.
Note
that
Linx,
Z(Inx)?,
Liny,
E(Iny)2,
and
ZInx-Iny
are
obtained
instead
of
Ex,
Ex?,
xy,
zy",
and
Exy
respectively.
ex)
3895
Find
A,B,r,
andy
using
the
above
figures
as
a
basis.
OPERATION
READ-OUT
——_——__—_QPERATION
READOUT
“LR”
GO
e2§
2
8
GHD
OF)
Gay
|
3.33220451__
|
2410
faa
306i
H&B
3033
GF
ty
GN
33
GH
WE
3895
GT
i
OD
35GB
4491
Gi
OM
38
GH)
Gy
57
17
Ga
a)
anmEne
ane
(When
xi
is
40)
40S
WS
ae
(When
yi
is
1000)
1
000
Gar
fie)
SHIN
)
Sar
ER
20.26225439
—3)-—
(A)
(B)
(r)
(y)
(%)
8
/PROGRAMMED
CALCULATIONS
*This
calculator
has
a
Program
memory
of
135
steps.
Up
to
four
programmed
procedures
of
calculation
may
be
stored
in
the
memory.
*To
store
a
program
(mathematical
Procedure)
in
the
calculator,
execute
ordinary
(i.e.
manual)
calculation
in
the
LRN
mode
(press
{ioe
fH
)
only
once,
*
Now
the
calculator
has
memorized
the
program.
Input
data
and
press
the
key,
and
the
calculator
executes
the
program
with
the
data.
This
is
very
convenient
for
repeating
calculations
with
varying
sets
of
data.
®
How
to
store
and
execute
programs
Example
1:
Calculate
the
surface
areas
(S)
of
regular
octahedrons
whose
ridges
are
respectively
10,
7
and
15cm
long.
Ridge
length
(a)
we
a
Formula:
S=
2/3
a?
10cm
(346.41)
cm?
7
(169.74)
15
(779.42)
The
following
sequence
of
key
operations
*
Values
enclosed
with
parentheses
realizes
a
mathematical
procedure
of
the
are
to
be
obtained.
above
formula.
2308
1088—
S
Value
of
a
(data)
©
Operate
the
above
sequence
in
the
LRN
mode
(
#3).
Note
that
@&)
must
be
pressed
prior
to
data
entry
(the
value
of
@
in
this
case),
OPERATION
READ-OUT
(Select
LRN
mode)
(MODE)
x7
one
oO.
7S
LRN
lit,
HIV
blinking.
(Designate
program
No.)
@
oe
a
ia
eke
veal
area
|
ee
ae
pa]
Ee
ee
|
a
ae
LRN
I
1.732050808
The
mathematical
procedure
x
|
3
464101
615
t
is
stored
in
I.
an
wey
LRN
I
_
©
|
346.4101615
S
fora
=
10