The Function Aplet - HP 39gs Master Manual

T F
T F
H E U N C T I O
H E U N C T I O
The Function aplet is probably the one that you will use most of all. It allows you to:
graph equations
•
find intercepts
•
• find turning points (maxima/minima)
• find areas under curves
find areas between curves
•
find gradients
•
find derivatives algebraically
•
• find simple integrals algebraically
• evaluate functions at particular values
graph and evaluate algebraically expressions such as f(g(x)) or f(x+2)
•
Choose the aplet
The first step for any aplet is to choose it in the
Press the key and you will see something similar to the screen on
APLET
the right. Use the arrow keys to move the highlight up or down until the
Function aplet is selected. Now, looking at the list of context sensitive
functions at the bottom of the screen, you should see labels of
and .
Press the key under
press the key. The reason for doing this is to clear out any
functions that you may have put in there while playing around, and so to
make sure that what you see will be the same as the screen snapshots.
A
A
N P L E T
N P L E T
APLET LIBRARY
first. You'll see the message shown right -
.
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