HP 39gII User Manual page 291

θ
step
Polar
Tmin/Tmax
Parametric
Tracing
Tstep
Parametric
Programming
Appears as the RNG field in the Plot Setup input form.
From Plot Setup, enter values for RNG.
Or, in a program, type:
θ
n
min
1
θ
n
max
2
where
<
n n
1 2
Sets the step size for the independent variable.
From Plot Setup, enter a value for STEP.
Or, in a program, type:
θ
n
step
where
>
n 0
Sets the minimum and maximum independent variable
values.
Appears as the TRNG field in the Plot Setup input form.
From Plot Setup, enter values for TRNG.
Or, in a program, type:
n
Tmin
1
n
Tmax
2
where
<
n n
1 2
Turns tracing on or off in the Plot view.
From the Plot view, press
tracing off or on.
Or, in a program, type:
Tracing—to turn Tracing mode on (default).
1
Tracing—to turn Tracing mode off.
0
Sets the step size for the independent variable.
From Plot Setup, enter a value for TSTEP.
then to toggle
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