Texas Instruments TITANIUM TI-89 User Manual page 339

6. Set the lower bound for x. Either use A and B to move the cursor to the lower bound
or type its x value.
If you do not press A or B, or type an x value when setting the lower and
Note:
upper bound,
respectively.
7. Press ¸. A 4 at the top of the screen marks the lower bound.
8. Set the upper bound, and press ¸.
The bounded area is shaded. To erase
the shaded area, press † (
Basic Function Graphing
and will be used as the lower and upper bound,
xmin xmax
ReGraph
Below
function
).
Above
function
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