Casio E-Con EA-200 Manual do Utilizador descarregar pdf (Página 44)

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k Performing Regression

You can use the procedure below to perform regression for a range specified using the trace

pointer. All of the following regression types are supported: 2VAR, Linear, Med-Med,

Quadratic, Cubic, Quartic, Logarithmic, Exponential, Power, Sine, and Logistic.

For details about these regression types, see page 6-3-5 of the manual that comes with the

ALGEBRA FX2.0/FX1.0 calculator.

The following procedure shows how to perform quadratic regression. The same general

steps can also be used to perform the other types of regression.

u To perform quadratic regression

1. On the graph screen, press 4(CALC).

• This displays the [CALC] menu.

2. Press f(Quad).

• This displays the trace pointer for selecting the range on the graph.

3. Move the trace pointer to the start point of the range for which you want to perform

quadratic regression, and then press w.

4. Move the trace pointer to the end point of the range for which you want to perform

quadratic regression, and then press w.

• This displays a dialog box for specifying the lists where you want to store the time data

and the sampled data.

• The initial default lists are List 1 for the time and List 2 for sample data. To change to

another list (List 1 to List 20), use the up and down cursor keys to move the highlighting

to the list you want to change, and then input the applicable list number.

5. Press w.

• This saves the time and sampled values as list data, and displays the quadratic

regression calculation result screen.

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Graph Analysis Tool Graph Screen Operations

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Casio E-Con EA-200 Manual do Utilizador Página 44