In the right hand panel the function [math]x^2 + Px + Q[/math] is plotted over the complex plane[br][br][br]The left hand panel shows the [math](P, Q)[/math] plane. [br]The coordinates of the large dot determine the values of [math]P[/math] and [math]Q[/math]. [br][br][br]Varying the values of [math]P[/math] and [math]Q[/math] allow you to explore the [br]real and complex solutions of the quadratic.[br][br][br]