Texas Instruments TI-73 用户手册

Chapter 9: Function Graphing     

7309ENG.DOC   CH 9 Function Graphing, English   Julie Hewlett   Revised: 07/29/98 12:14 PM   Printed: 05/19/99

9:01 AM   Page 173 of 24

 

If you enter a function in the Y= editor and press *, but

nothing happens or the graph doesn’t look the way you expect

it to, you may need to adjust the 

 values (').

Depending upon which section of a graph you specify through

the 

 values, the display on your calculator screen can

look very different.
In the example below, the first calculator screen uses 

values which include all four quadrants for the function,

¦

. (Calculator is in 

mode.) Then, Quadrants I,

II, III, and IV are shown separately, so you can see how

 values affect the display. The next section explains

how to redefine the values.

M

M

M

Y

1

=X¦cos(X)

M

M

M

M

M