Casio FXCP400 Manual De Usuario

Chapter 3: Graph & Table Application

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2. Tap [Analysis], [Trace], or tap =.

• This will display the pointer at the coordinates where 

 = 0. The pointer will not be visible when it is located 

at a point outside the graph display area.

• If “Undefined” appears in place of the 

 or 

 coordinate, it means that the current point is undefined. 

Press the left or right cursor key to move to a point that is defined.

3. Press the left or right cursor key, or tap the left or right graph controller arrow.

• This moves the pointer along the graph, and displays the coordinates of 

the current pointer location.   

• You can also move the pointer to a particular point by inputting 

coordinates. Pressing a number key displays a dialog box for inputting 
coordinates. Input the values you want and then tap [OK].

• When there are multiple graphs on the Graph window, you can use the up 

and down cursor keys or the up and down graph controller arrows to move the pointer between graphs.

4. To quit the trace operation, tap l on the icon panel.

•  While the trace pointer is on the window, tapping the displayed coordinate values causes the coordinate values to appear 

in the message box. You can then copy the coordinates to the clipboard.

•  Selecting the [Derivative/Slope] check box on the Graph Format Dialog Box will show the derivative along with 

coordinates while the trace pointer is on the display. Clearing the [Coordinates] check box will hide the coordinate display 
while the trace pointer is on the display. For more information, see “Graph Format Dialog Box” on page 36.

The [Sketch] menu lets you add points, lines, figures, and text after you draw a graph. You can also add 
tangent and normal lines to your graph.

This section describes how to use each of the commands on the [Sketch] menu. 

u To clear figures inserted using the Sketch menu

To clear plots, lines, text, or other figures inserted using the [Sketch] menu, tap [Analysis], [Sketch], and then 
[Cls]. This redraws the graph to what is stored on the Graph Editor window.

u To plot a point on the Graph window

1. While the Graph window is active, tap [Analysis], [Sketch], and then [Plot].

2. Tap the location on the Graph window where you want to plot a point.

• Instead of tapping the Graph window, you could also use the keypad to specify the coordinates of the point. 

Press a number key on the keypad. On the dialog box that appears, input 

- and 

-coordinate values, and 

then tap [OK].

u To draw a line on the Graph window

1. While the Graph window is active, tap [Analysis], [Sketch], and then [Line].

2. Tap the start point of the line and then tap the end point. This causes a straight line to be drawn between the 

two points. The message box shows the equation of the line.

• Instead of tapping the Graph window, you can use the keypad to specify the coordinates of the start point 

and end point. Press a number key on the keypad. On the dialog box that appears, input the coordinates 
for the start point (

1

, 

1

) and the end point (

2

, 

2

), and then tap [OK].