Texas Instruments TI-89 Manual Do Utilizador

Basic Function Graphing

 320

 To hide the cursor and its coordinates temporarily, press 

M, N, or ¸. 

The next time you move the cursor, it moves from its last position.

When you move the cursor to a pixel that appears to be “on” the function, it may be near 
the function but not on it.

To increase the accuracy:

•

Use  the 

 tool described on the next page to display coordinates that are on the 

function.

•

Use  a 

 operation to zoom in on a portion of the graph.

In increments of 10 pixels

2

 and then a cursor pad arrow.

Cursor coordinates are for 
the center of the pixel, not 
the function.