Casio ALGEBRA FX 2.0 Plus User Manual

19990401
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k Power Regression Graph
Power regression expresses y as a proportion of the power of x. The standard power
regression formula is y = a × x
b
, so if we take the logarithm of both sides we get In y = In a +
b × In x. Next, if we say X = In x, Y = In y, and A = In a, the formula corresponds to linear
regression formula Y = A + bX.
4(CALC)j(Power)
6(DRAW)
The following is the power regression model formula.
y = a
•
x
b
a ............. regression coefficient
b ............. regression power
r .............. correlation coefficient
r
2
............. coefficient of determination
MSe ........ mean square error
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k Sinusoidal Regression Graph
Sinusoidal regression is best applied for cyclical data.
The following is the sinusoidal regression model formula.
y = a·sin(bx + c) + d
While the statistical data list is on the display, perform the following key operation.
4(CALC)v(Sin)
6(DRAW)
Drawing a sinusoidal regression graph causes the angle unit setting of the calculator to
automatically change to Rad (radians). The angle unit does not change when you perform a
sinusoidal regression calculation without drawing a graph.
• Certain types of data may take a long time to calculate. This does not indicate malfunction.
6-3-9
Calculating and Graphing Paired-Variable Statistical Data
20011101

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