Texas Instruments TI-89 Titanium User Manual page 323

5. Press ¸. A 4 at the top of the screen marks the lower bound.
6. Set the upper bound, and press ¸.
The cursor moves to the intersection, and
its coordinates are displayed.
Finding the Derivative (Slope) at a Point
1. From the
Graph
the submenu.
2. As necessary, use D and C to select the applicable function.
3. Set the derivative point. Either move the
cursor to the point or type its x value.
4. Press ¸.
The derivative at that point is displayed.
Finding the Numerical Integral over an Interval
1. From the
Graph
2. As necessary, use D and C to select the applicable function.
Typing x values is a quick way to set the limits.
Note:
Basic Function Graphing
screen, press ‡ and select
screen, press ‡ and select
y2(x)=2x N 7
. Then select
6:Derivatives
.
7: f(x)dx
‰
from
1:dy/dx
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