HP 39g+ User Manual page 76

Set angle
measure
Set up the plot
Plot the
expression
4-2
3. Set the angle measure to degrees.
MODES
Select Degrees
4. Display the graphing options.
PLOT
The Plot Setup input form has two fields not included
in the Function aplet, TRNG and TSTEP. TRNG
specifies the range of t values. TSTEP specifies the
step value between t values.
5. Set the TRNG and TSTEP so that t steps from 0° to
360° in 5° steps.
360
5
6. Plot the expression.
7. To see all the circle, press twice.
Parametric aplet