Operation Manual

Chapter 3: Function Graphing 85
If you move the trace cursor beyond the top or bottom of the screen, the coordinate values at the
bottom of the screen continue to change appropriately.
Moving the Trace Cursor from Function to Function
To move the trace cursor from function to function, press † and }. The cursor follows the order of the
selected functions in the Y= editor. The trace cursor moves to each function at the same X value. If
ExprOn format is selected, the expression is updated.
Moving the Trace Cursor to Any Valid X Value
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.
Panning to the Left or Right
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.
Quick Zoom
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.
Leaving and Returning to 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.
Using TRACE in a Program
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.
Trace cursor on the curve