Texas Instruments TI-73 사용자 설명서

Chapter 10: Drawing    

7310ENG.DOC   Draw   Texas Instruments   Revised: 05/29/98 6:43 PM   Printed: 05/19/99 9:01 AM   Page 189 of 22

 

ClrDraw   2

 

 clears all drawn elements from the Graph screen. All

points, lines, and shading drawn with 2 

 menu items

are temporary. Therefore, if you leave the Graph screen, and

then return, all drawings are erased.
If you select 

 from the Graph screen, the current graph

is replotted and displayed with no drawn elements. You can

save drawings and recall them with the 2 

 menu.

If you select 

 from the Home screen or a program, it is

pasted to the cursor location. Pressing b executes the

instruction, all drawings on the current graph are erased, and

the message 

is displayed. When you display the graph

again, all drawn elements disappear.

 

Line(   2

 

 draws a line from point (X

1

,Y

1

) to (X

2

,Y

2

). You can execute

the 

 instruction from the Graph screen, the Home screen

or Program editor.

 

To draw a line on the Graph screen:

1. From the Graph screen, select 2 

. The cursor

appears in the middle of the Graph screen. The X- and Y-

coordinates are shown at the bottom of the screen. If

they are not, you can turn them on by selecting 

(- g).

2. Position the cursor at the beginning point of the line

segment that you want to draw, and then press b.

The cursor becomes a small box.

3. Move the cursor to the end point of the line segment, and

then press b. The line segment is drawn as you move

the cursor.

4. Repeat steps 2 and 3, as necessary. To cancel 

, press

:.