The control panel contains all form fields to produce the appplication's
plots.
Plotting
The "Add Curve" button in the bottom left of the control panel will
be grayed out and disabled until the required fields are entered.
Once the required fields are entered correctly the "Add Curve"
button will change colors and be enabled. Clicking the button will
add a curve to the plot.
Clear Plot
The "Clear Plot" button in the bottom of the control panel will be
grayed out and disabled until the "Add Curve" button has been
pressed.
Once enabled, clicking the "Clear Plot" button will clear and reset
the plot.