Exploring Graphs With Trace - Texas Instruments TI-83 Manual Book

Exploring Graphs with TRACE

Beginning a
Trace
Moving the Trace
Cursor
Moving the Trace
Cursor from
Function to
Function
3-18 Function Graphing
Use to move the cursor from one plotted point to
TRACE
the next along a function. To begin a trace, press r. If
the graph is not displayed already, press r to display
it. The trace cursor is on the first selected function in the
editor, at the middle
Y=
coordinates are displayed at the bottom of the screen if
format is selected. The
CoordOn
in the top-left corner of the screen, if
selected.
To move the TRACE cursor . . .
. . . to the previous or next plotted
point,
. . . five plotted points on a function
( affects this),
Xres
. . . to any valid value on a function, enter a value, and
X
. . . from one function to another,
When the trace cursor moves along a function, the
is calculated from the
function is undefined at an
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.
To move the trace cursor from function to function, press
† and }. The cursor follows the order of the selected
functions in the
Y=
function at the same
the expression is updated.
value on the screen. The cursor
X
expression is displayed
Y=
value; that is,
X
value, the
X
Trace cursor on the curve
editor. The trace cursor moves to each
value. If
X ExprOn
format is
ExprOn
do this:
press | or ~.
press y | or y
~.
then press Í.
press } or †.
value
Y
= n . If the
Y Y (X)
value is blank.
Y
format is selected,