Use the widget below by entering data in the input box. Use the format of the following examples.

• Function plot: y = sin(3x) - 2exp(-x)
• Function plot: y = x^2 for -3 < x < 3
• Parametric plot: x = cos(t), y = sin(2t), 0 < t < 1
• Polar plot: r = sin(2 theta)
• Surface plot: f(x,y) = sin(x + y^2)