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 100 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 100 of 22

�   Select 

 from the 

GRAPH

 

MATH

 menu.

The current graph is displayed with 

at the bottom of the graph screen.

�   Select the first function (curve). The cursor

moves to the next function and 

is displayed.

6 /
& / (

# $ b

�   Select the second function (curve).

 is

displayed.

�   Guess the intersection. Either move the cursor to

a point near an intersection or enter an 

 value.

# $ b

a 

 ` 

(or ! ")

�   Solve. The result cursor is displayed at the

intersection , the cursor coordinates are the
result, and the 

 value is stored to 

.

b

To use 

, select 

 from the 

GRAPH

 

MATH

 menu (6 / & / '). Press

# and $ to select a function, and then press b. The result cursor is displayed at the
y-intercept, the cursor coordinate values are displayed, and 

 is stored in 

.

In the example, the functions

2

 and

 are selected.