[Maxima] plotting results of rk

[Semyon Glazyrin]

Hello!

How can I plot the result of solution by rk of system of diff equations:
For example

$ load(dynamics);
$ res:rk([x+y,x-y],[x,y],[1,0],[t,0,1,0.1]);

This returns me a list of [t,x,y]. How can I plot x(t) and y(t)?

thanks,
Semyon.