Casio FX-9750G Bedienungsanleitung

Dual Graph

Dual Graph lets you split the display between two different screens,

which you can then use to draw different graphs at the same time.

Dual Graph gives you valuable graph analysis capabilities.

• You should be familiar with the contents of “8-3 Graph Function

Operations” before reading this chapter.

11-1 Before Using Dual Graph

11-2 Specifying the Left and Right View Window

Parameters

11-3 Drawing a Graph in the Active Screen

11-4 Displaying a Graph in the Inactive Screen

Chapter

190

11-1 Before Using Dual Graph

From the Main Menu, enter the GRAPH Mode and set the Dual Screen setting to

“Graph”.

!Zcc1(Grph)

• For further details about the function key menu at the bottom of the display, see

“8-1 Before Trying to Draw a Graph”.

• 8,192 bytes of memory are used whenever you set the Dual Screen setting to

“Graph”.

kAbout Dual Graph Screen Types

The screen on the left side of the display is called the

active screen

, and the graph

on the left side of the display is called the

active graph

. Conversely, the right side is

the

inactive screen

containing the

inactive graph

. Any function that you execute while

using Dual Graph is always applied to the active graph. To execute a function on the

right-side inactive graph, you must first make it active by moving it into the active

screen.

Active Screen

Actual graph drawing is done here.

Inactive Screen

Use this screen to make copies of active screen

graphs, and for the result of Zoom operations.

You can also set different View Window param-

eters for the active and inactive screens.

P.8

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P.126

191

• Indicators appear to the right of the formulas in the function memory list to tell

where graphs are drawn with Dual Graph.

Indicates inactive graph (on right side of display)

Indicates graph drawn on both sides of display

If you redraw graphs in the situation shown above, the function marked “ R” is

drawn as the inactive graph, while “ B” is drawn using both sides of the display.

If you press 1(SEL), the “ R” and “ B” indicators are cleared, and the graphs

are drawn as active graphs.

Before Using Dual Graph 11 - 1

192

11-2 Specifying the Left and Right View Window

Parameters

You can specify different View Window parameteres for the left and right sides of the

graph display.

uTo specify View Window parameters

Press !3 (V-Window) to display the View Window parameter setting screen for

the active (left side) graph.

!3 (V-Window)

1(INIT)........ Initialization of View Window values

2(TRIG)...... InitializationofViewWindowvalues to match trigonometric units

3(STD) ....... View Window standard settings

4(STO) ....... Store settings in memory

5(RCL) ....... Recall settings from memory

(RIGHT) ...

Swap active (left) screen and inactive (right) screen View

Window settings

(LEFT)

• Use the procedures described under “View Window (V-Window) Settings” to in-

put parameter values.

• Use the following key operations to change to different screens while inputting

View Window parameters for the left and right side screens.

While the View Window parameter setting screen for the active graph is shown:

6(RIGHT).............. Displays the inactive graph View Window param-

eter setting screen

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P.127

P.129

P.130

193

While the View Window parameter setting screen for the inactive graph is shown:

6(LEFT) ................ Displays the active graph View Window parameter

setting screen

Specifying the Left and Right View Window Parameters 11 - 2

194

11-3 Drawing a Graph in the Active Screen

You can draw graphs only in the active screen. You can then copy or move the graph

to the inactive screen.

uDrawing a graph in the active screen

Example To draw the graph of y= x(x+ 1) (x– 1)

Use the following View Window parameters:

Input the function.

v(v+b)

(v-b)

Store the function.

Draw the graph.

6(DRAW) or w

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195

11-4 Displaying a Graph in the Inactive Screen

There are two methods you can use to display a graph in the inactive screen. You

can copy a graph from the active screen to the inactive screen, or you can move the

graph from the active screen to the inactive screen. In both cases, you must first

draw the graph in the left-side active screen.

kBefore Displaying a Graph in the Inactive Screen

After drawing a graph in the active screen, press K, and the Dual Graph function

menu appears at the bottom of the display.

1(COPY) .... Copies active graph to inactive screen

2(SWAP).... Switches active screen and inactive screen

3(PICT) ...... Picture function

kCopying the Active Graph to the Inactive Screen

Example To draw the graph for y= x(x+ 1) (x– 1) on the active screen and

the inactive screen

Use the following View Window parameters:

Active (Left) Screen Inactive (Right) Screen

View Window parameters View Window parameters

Assume that the function being graphed is stored in memory area Y1.

Draw the graph in the active

screen.

6(DRAW)

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P.159

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196

Copy the graph to the inactive (right) screen.

K1(COPY)

• The graph is reproduced using the inactive screen View Window parameters.

kSwitching the Contents of the Active and Inactive Screens

Example To switch the screens produced by the preceding example

Switch the screens.

K2(SWAP)

• Note that using 2(SWAP) to switch the screens also switches their View

Window parameters.

kDrawing Different Graphs on the Active Screen and

Inactive Screen

Example To draw the graphs of the following functions on the screens

noted:

Active Screen: y= x(x+ 1) (x– 1)

Inactive Screen: y= 2x2– 3

Use the View Window parameters shown below.

Active (Left) Screen Inactive (Right) Screen

View Window parameters View Window parameters

Assume that the functions being graphed are stored in memory areas Y1 and Y2.

11 - 4 Displaying a Graph in the Inactive Screen

197

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Displaying a Graph in the Inactive Screen 11 - 4

123456

Select the function for the graph that you want to end up in the inactive (right) screen.

1(SEL)

Draw the graph in the active screen.

6(DRAW)

Swap the screens so the graph is on the inactive (right) screen.

K2(SWAP)

Select the function for the graph that you want in the now-empty active (left) screen.

A1(SEL)

Draw the graph.

6(DRAW)

• At this point, you could perform a copy operation and superimpose the active

graph over the inactive graph.

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198

K1(COPY)

• Pressing !6 (G ↔T) lets you switch between display of the active and

inactive graphs, using the entire display for each.

!6(G ↔T)

11 - 4 Displaying a Graph in the Inactive Screen

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