|shift+drag||control level of zoom|
|esc||center viewport, set default zoom|
|shift+esc||wipe plots from graph|
|u||undo last plot|
Enter x(t) and y(t) into the first two boxes. Enter t0 and t1, the bounds on t, into the next two boxes. Finally, specify the plot color in CSS notation (either #hex or a color word) and hit the plot button. In the chart on the left, 'drag' refers to left-clicking on the graph and moving the mouse with the left mouse button depressed. Alternatively, you can make fine adjustments using the arrow keys. Note that f(t) is sampled at discrete intervals (between which is it linearly interpolated), so if you attempt to graph a curve that turns sharply at high speeds, expect some angles. Have fun!