Casio ALGEBRA FX 2.0 Plus User Manual

19990401
k Logarithmic Regression Graph
Logarithmic regression expresses y as a logarithmic function of x. The standard logarithmic
regression formula is y = a + b × In x, so if we say that X = In x, the formula corresponds to
linear regression formula y = a + bX.
4(CALC)h(Log)
6(DRAW)
The following is the logarithmic regression model formula.
y = a + b
•
ln x
a .............
regression constant term
b ............. regression coefficient
r .............. correlation coefficient
r
2
............ coefficient of determination
MSe ........ mean square error
k Exponential Regression Graph
Exponential regression expresses y as a proportion of the exponential function of x. The
standard exponential regression formula is y = a × e
bx
, so if we take the logarithms of both
sides we get In y = In a + bx. Next, if we say Y = In y, and A = In a, the formula corresponds
to linear regression formula Y = A + bx.
4(CALC)i(Exp)
6(DRAW)
The following is the exponential regression model formula.
y = a
•
e
bx
a ............. regression coefficient
b ............. regression constant term
r .............. correlation coefficient
r
2
............ coefficient of determination
MSe ........ mean square error
6-3-8
Calculating and Graphing Paired-Variable Statistical Data
2001010220011101

Casio ALGEBRA FX 2.0 Plus Specifications

General

Type	Scientific
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
Digits	12 digits
Display type	Dot-matrix
Backlight color	Green
Backlight display	Yes
Display resolution	128 x 64 pixels
Display number of lines	8 lines
Display number of characters	21
RAM capacity	0.75 MB
ROM capacity	0.1406 MB
Storage media type	-
Battery type	CR2032, AAA
Power source	Battery
Number of batteries supported	5

Weight and Dimensions

Depth	178 mm
Width	82 mm
Height	19.5 mm
Weight	213 g