A continuous curve in a twodimensional space is called a set of points P(x,y) if coordinates of the points satisfy a parametrical equation set x = x(t) and y = y(t) where x(t) and y(t) are continuous functions of the parameter t on a closed interval [t_{min}, t_{max}]. The curve may have more than one branch. This simulation allows users to assign the functions of x and y as well as the interval of the parameter, and to observe the graph of a parametric curve.
