Casio fx-115ES Appendix

–25–
#070
#071
A = exp
( )
n
Σ
ln y – B
.
Σx
B =
n
.
Σx
2
–
(
Σx
)
2
n
.
Σx
ln
y
– Σx
.
Σ
ln y
r
=
{ n
.
Σx
2
–
(
Σx
)
2
}{ n
.
Σ
(
ln
y
)
2
–
(
Σ ln y
)
2
}
n
.
Σx
ln
y
– Σx
.
Σ
ln y
m =
B
lny – lnA
n = Ae
Bx
A = exp
( )
n
Σ
ln y – B
.
Σx
B = exp
( )
n
.
Σx
2
–
(
Σx
)
2
n
.
Σx
ln
y
– Σx
.
Σ
ln y
r
=
{ n
.
Σx
2
–
(
Σx
)
2
}{ n
.
Σ
(
ln
y
)
2
–
(
Σ ln y
)
2
}
n
.
Σx ln
y
– Σx
.
Σ
ln y
m =
lnB
lny – lnA
n = AB
x

Casio fx-115ES Specifications

General

Type	Scientific
Cover	Yes
Form factor	Pocket
Control type	Buttons
Product color	Silver
Housing material	Plastic
Digits	12 digits
Display tilting	-
Backlight display	No
Display number of lines	2 lines
Power source	Battery/Solar
Memory registers	7