Texas Instruments TI-89 Manuale Utente
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Basic Function Graphing
320
Note:
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.
the function but not on it.
To increase the accuracy:
•
Use the
Trace
tool described on the next page to display coordinates that are on the
function.
•
Use a
Zoom
operation to zoom in on a portion of the graph.
In increments of 10 pixels
2
and then a cursor pad arrow.
To move the free-moving cursor:
Press:
Cursor coordinates are for
the center of the pixel, not
the function.
the center of the pixel, not
the function.