Casio fx-CG20 Manual De Usuario

CASIO

15-7

u To save a file under a different name

1. While the Picture Plot screen is displayed, press 

K1(FILE)3(SAVE

AS).

• This displays a folder selection screen.

2. Specify the folder you want.

• Highlight ROOT to save the file to the root directory.

• To save the file in a specific folder, use 

f and c to move the highlighting to the desired 

folder and then press 

1(OPEN).

3. Press 

1(SAVE

AS).

4. On the File Name dialog box that appears, enter a name up to eight characters long and 

then press 

w.

You can plot points on the screen, overlay them with a graph of an expression in the form 
Y=

(

), and draw a regression graph that approximates the plots.

k Plotting Points

u To plot points on the screen

1. Enter the Picture Plot mode and then open a g3p or g3b file.

• This displays the Picture Plot screen.

• For information about how to open a file, see “To open 

a file” (page 15-5).

2. Press 

K2(Plot) to enter the Plot mode.

• A pointer will appear in the center of the screen.

3. Use the cursor keys (or number keys) to move the pointer to the location of the point you 

want to plot and then press 

w.

• This plots a point at the current pointer location.

• If the currently open file is a g3b file, plotting a point will switch to the next image in the file. 

For details, see “Plotting Points in a g3b File” (page 15-8).

• To delete the last point you plotted, press 

K2(UNDO).

• For information about using the number keys to move the pointer to a particular location, 

see “To make the pointer jump to a particular location” (page 15-8).