Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 86

Moving the Trace Cursor
To move the TRACE cursor
To the previous or next plotted point,
Five plotted points on a function (Xres
affects this),
To any valid X value on a function,
From one function to another,
When the trace cursor moves along a function, the Y value is calculated from the X value; that is,
. If the function is undefined at an X value, the Y value is blank.
Y=Yn(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.
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 format is selected, the expression is updated.
ExprOn
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
corner of the screen. You can enter an expression at the
the current viewing window. When you have completed the entry, press Í to move the cursor.
This feature does not apply to stat plots.
Note:
do this:
press
press
enter a value, and then press
press
Trace cursor on the curve
prompt and the number you entered are displayed in the bottom-left
X=
| ~
or .
y | y ~
or .
Í
} †
or .
prompt. The value must be valid for
X=
Chapter 3: Function Graphing
.
79