Exploring Graphs With Trace - Texas Instruments TI-82 STATS 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 the
TRACE
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
the middle value on the screen. The cursor coordinates are
X
displayed at the bottom of the screen if
selected. The expression is displayed in the top-left corner of
Y=
the screen, if
ExprOn
To move the TRACE cursor . . .
. . . to the previous or next plotted point, press | or ~.
. . . five plotted points on a function (
affects this),
. . . to any valid value on a function,
X
. . . from one function to another,
When the trace cursor moves along a function, the
calculated from the
undefined at an value, the
X
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
editor. The trace cursor moves to each function at the same
Y=
value. If format is selected, the expression is updated.
ExprOn
format is selected.
Xres
value; that is, =
X Y Y
value is blank.
Y
Trace cursor on the curve
editor, at
Y=
format is
CoordOn
do this:
press y | or y
~.
enter a value, and
then press Í.
press } or †.
value is
Y
n . If the function is
(X)
X