Function Graphing 3.19
82533F~1.DOC TI-83 international English Bob Fedorisko Revised: 10/26/05 1:20 PM Printed: 10/27/05 1:55
PM Page 19 of 28
To move the trace cursor to any valid X value on the current
function, enter the value. When you enter the first digit, an
X=
prompt and the number you entered are displayed in the bottom-
left corner of the screen. You can enter an expression at the
X=
prompt. The value must be valid for the current viewing
window. When you have completed the entry, press Í to
move the cursor.
Note: This feature does not apply to stat plots.
If you trace a function beyond the left or right side of the screen,
the viewing window automatically pans to the left or right.
Xmin and Xmax are updated to correspond to the new viewing
window.
While tracing, you can press Í to adjust the viewing
window so that the cursor location becomes the center of the
new viewing window, even if the cursor is above or below the
display. This allows panning up and down. After Quick Zoom,
the cursor remains in
TRACE.
When you leave and return to
TRACE, the trace cursor is
displayed in the same location it was in when you left
TRACE,
unless Smart Graph has replotted the graph (page 3.15).
On a blank line in the program editor, press r. The
instruction
Trace is pasted to the cursor location. When the
instruction is encountered during program execution, the graph
is displayed with the trace cursor on the first selected function.
As you trace, the cursor coordinate values are updated. When
you finish tracing the functions, press Í to resume program
execution.
Moving the Trace
Cursor to Any
Valid X Value
Panning to the
Left or Right
Quick Zoom
Leaving and
Returning to
TRACE
Using TRACE in
a Program
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