Texas Instruments TITANIUM TI-89 - Manual (Page 335)

Basic Function Graphing 335
3. Set the lower limit for x. Either use A and B to move the cursor to the lower limit or
type its x value.
4. Press ¸. A 4 at the top of the screen marks the lower limit.
Note: To erase the shaded area, press † (
ReGraph ).
Finding an Inflection Point within an Interval Finding an Inflection Point within an Interval Finding an Inflection Point within an Interval Finding an Inflection Point within an Interval
1. From the Graph screen, press ‡ and select
8:Inflection .
2. As necessary, use D and C to select the applicable function.
3. Set the lower bound for x. Either use A and B to move the cursor to the lower bound
or type its x value.
4. Press ¸. A 4 at the top of the screen marks the lower bound.
Finding the Distance between Two Points Finding the Distance between Two Points Finding the Distance between Two Points Finding the Distance between Two Points
1. From the Graph screen, press ‡ and select
9:Distance .
5. Set the upper limit, and press ¸.
The interval is shaded, and its
approximate numerical integral is
displayed.
5. Set the upper bound, and press ¸.
The cursor moves to the inflection point (if
any) within the interval, and its
coordinates are displayed.