Sharp EL-738F Operation Manual page 73

3
Example
DATA
x y
12 41
8 13
5 2
23 200
15 71
a =
b =
c =
y´ = ? 10 . ?
x = 10
x´ = ? 22 . 9
y = 22
Quadratic regression calculation
Key operation
m 1 2
12 > 41 J
8 > 13 J
5 > 2 J
23 > 200 J
15 > 71 J
f a
f b
f a
@
@
71
Result
S a 2
000
DATA SET=
DATA SET=
DATA SET=
DATA SET=
DATA SET=
a
=
-312
b
=
c
=
2449
10y´
≈¡=
-343
≈™=
≈¡=
100
200
300
400
500
536
050
963
963