Add/Modify Parametric Function
This dialog is used to add or modify a parametric function. For more information see: 2 dimensional Cartesian graph

Function Definition
These fields describe the mathematical attributes of the function to be graphed.

X= and Y= Enter the parametric functions to be graphed here, must be a valid function definition containing only "T" variables. For more information on functions and syntax see: Mathematical Expression Rules.

Examples Bounds Graph Results
X=cos(t); Y=sin(t) 0 <= t <= 2pi Circle With Radius 1
X=t; Y=t^2 -100 <= t <= 100 Parabola
X=sec(t); Y=tan(t) -pi/2 <= t <= pi/2 Hyperbola

Lower Bound And Upper Bound - Used to restrict the functions lower and upper domain ("T" value). Both bounds are required and must be in; (-10,000Pi <= Theta <= 10,000Pi). The specified bound is always included in the graph. For example, if (lower bound = -Pi/2) and (upper bound = 4Pi) then the plotted domain is (-Pi/2 <= Theta <= 4Pi). Must be a valid constant mathematical expression (in radian graph units).

Properties
These settings determine the visual appearance of the function.

Samples - This setting adjusts the level of accuracy that the function is drawn with. It is the number of function points that will be calculated and draw between the lower and upper bounds.

Color - Opens a dialog to changes the function line color. Current color is displayed in the sample rectangle.

Line Width - Changes the function line width.