Texas TI-86 用户手册

06TOOLS.DOC   TI-86, Chap 6, US English   Bob Fedorisko   Revised: 02/13/01 2:23 PM   Printed: 02/13/01 3:01 PM   Page 105 of 22

06TOOLS.DOC   TI-86, Chap 6, US English   Bob Fedorisko   Revised: 02/13/01 2:23 PM   Printed: 02/13/01 3:01 PM   Page 105 of 22

Draws a horizontal line, which you can move to any displayed 

 value

Draws a circle with a center point and radius you specify with the cursor

Draws the path of the cursor as you move it on the graph screen

Turns on the point at the cursor location

Turns off the point at the cursor location

Changes the on

àoff status of a point at the cursor location

Clears all drawings from the graph screen; replots the graph

Draws characters on the graph at the cursor location

�   Select 

 from the 

GRAPH

 

DRAW

 menu. The

graph is displayed.

�   Define one segment endpoint with the cursor.

6 /
' '
" # ! $
b

�   Define the other endpoint of the segment. As

you move the cursor, a line anchored at the
first defined endpoint extends to the cursor.

�   Draw the line.

" # ! $

b

To draw more line segments, repeat steps 2 and 3; to cancel 

, press :.

In the example, the functions

 and

 are selected.