TI -86 用户手册

00QWIKST.DOC   TI-86, Quick Start, US English   Bob Fedorisko   Revised: 02/13/01 1:51 PM   Printed: 02/13/01 2:59 PM   Page 10 of 14

�   Select 

 from the 

GRAPH

 menu to

display the equation editor. 

 is the

unevaluated expression stored to 

 in the

previous activity. The equation editor
menu is displayed as the lower menu.

&

         equation
         editor menu

�   Move the cursor down. The 

prompt is

displayed.

#

�   Enter the expression 

 at the 

prompt. Notice that the equals sign (

) of

 is highlighted after you enter 

. Also,

the equals sign of 

 is highlighted. This

indicates that both equations are selected
to be graphed (Chapter 5).

 D > 2 E

In the equation editor, the icon to the left of each equation specifies the style in which the
graph of that equation appears when you plot it on the graph screen.

�   Move the cursor to 

.

$

�   Display the next menu group of the equation

editor menu. ( 

4 at the end of a menu group

indicates that the menu has more items.)

/

�   Select 

 from the equation editor

menu to set ¼ (thick) graph style for 

.

(

   graph style icons

In the equation editor, you
must express each equation
in terms of the independent
variable 

 (in 

 graphing

mode only; Chapter 5).

To display up to seven graph
styles, depending on the
graphing mode, repeat  

(

.