To do this on the Graph window:

Do this:

Automatically configure settings so the Graph screen fills the entire

Tap [Zoom] and then [Auto], or

screen in accordance with the graph being drawn

tap R.

 

 

Return a graph to its original View Window settings

Tap [Zoom] and then [Original].

 

 

Adjust View Window x-axis values so that they are identical to the y-axis

Tap [Zoom] and then [Square].

values

 

 

 

Round View Window settings (xmin, xmax, xdot) to an appropriate

Tap [Zoom] and then [Round].

number of decimal places and redraw the graph

 

 

 

Make the value of each dot equal 1, which makes all coordinate values

Tap [Zoom] and then [Integer].

integers

 

 

 

Return View Window parameters to their settings prior to the last zoom

Tap [Zoom] and then [Previous].

operation

 

 

 

Return View Window parameters to their initial default (see “Initial

Tap [Zoom] and then [Initialize].

(Default)” under “View Window Preset Parameters” on page 102)

 

 

 

Redraw graphs using preset View Window parameter values

See “Using Quick Zoom” below.

 

 

Using Quick Zoom

The quick zoom commands on the [Zoom] menu draw a graph using preset built-in View Window parameter values.

Note: The values in the explanations below apply during the half-size view of the Graph window (which is the initial default setting of the Graph & Table application). Tapping ron the icon panel will switch to the full-screen view and change the View Window settings.

Command

 

 

View Window Parameter Values*1

 

 

xminxmaxxscaleyminymaxyscale

 

 

 

 

 

 

 

 

Quick Trig

*2

*2

*2

–2.1

2.1

1

Quick log (x)

–2

13.4

2

–4.6

4.6

1

 

 

 

 

 

 

 

Quick e^x

–2.2

2.2

1

–1.4

9

1

 

 

 

 

 

 

 

Quick x^2

–7.7

7.7

2

–12

80

5

 

 

 

 

 

 

 

Quick –x^2

–7.7

7.7

2

–80

12

5

 

 

 

 

 

 

 

Quick Standard

–10

10

1

–10

10

1

 

 

 

 

 

 

 

*1 Any View Window parameter that is not shown in the above table is unchanged when you execute a quick zoom command.

*2 Depending on the Basic Format Angle setting, executing Quick Trig changes the xscale setting to π/2 (for Radian), 90 (for Degree), or 100 (for Grad). The following settings are applied based on the xscale value: xmin = –7.7 ⋅ xscale, xmax = 7.7 ⋅ xscale.

Using Built-in Functions for Graphing

Your ClassPad is pre-programmed with the commonly used functions listed below. You can recall a built-in function, assign values to its coefficients, and graph the results.

y = a￿x + b

y = a￿cos (b￿x + c) + d

y = a￿e^(b￿x + c) + d

y = a￿x^2 + b￿x + c

y = a￿tan (b￿x + c) + d

y = a^(b￿x + c) + d

y = a￿x^3 + b￿x^2 + c￿x + d

y = a￿log (b￿x + c) + d

y = a /(b￿x + c) + d

y = a￿sin (b￿x + c) + d

y = a￿ln (b￿x + c) + d

 

Note: Built-in functions are graphed automatically and cannot be used for input on the Graph Editor window.

Chapter 3: Graph & Table Application

104