HP 39g+ - Manual (Page 251)

Extending aplets 16-3
3. Decide whether you want the aplet to operate in Degrees,
Radians, or Grads.
>6+,)7@
MODES
8CPPT•
Select Degrees
PF•
4. Ensure the TRIANGLES aplet is saved in the Aplet
Library.
>$3/(7@
The Solve aplet can now
be reset and used for other
problems.
Example: To use
the customized
aplet To use the aplet, simply select the appropriate formula,
change to the Numeric view and solve for the missing
variable.
Find the length of a ladder leaning against a vertical wall if it
forms an angle of 35
o
with the horizontal and extends 5 metres
up the wall.
1. Select the aplet.
>$3/(7@ Select
TRIANGLES
TU6SU•Ã
2. Choose the sine formula in
E1.
*k,*k,*k,*k,
•8CF•Ã
3. Change to the Numeric
view and enter the known
values.
>180@
35
>(17(5@
5
>(17(5@