Enter your system of differential equations dx/dt = f(t,x,y) and dy/dt = g(t,x,y).
If you have dy/dt and dv/dt you will have to modify using x,y in place of y,v or use the "yv" applet version.
You may plot the following using the down arrows along the edges of the graph:
y vs. x (Phase plot)
x vs. t
y vs. t
Examples of valid expressions:
5*sin(t) y^2*sin(x) ln(3*x) abs(t^2-y) sin(PI*y) exp(y) step(x) sqrt(y)
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