# generates a pattern f(u,v)=1-3*u+2*u^2/v g(u,v)=d*(u^2-v) par du=2,dv=40 par d=1.25 u0=u1 v0=v1 u101=u100 v101=v100 u[1..100]'=f(u[j],v[j])+du*(u[j-1]-2*u[j]+u[j+1]) v[1..100]'=g(u[j],v[j])+dv*(v[j-1]-2*v[j]+v[j+1]) v[1..100](0)=1 u[1..100](0)=1+.2*ran(1) @ total=200,dt=.5,meth=cvode,bandup=2,bandlo=2 @ atol=1e-10,rtol=1e-10 done Click on InitialConds Go Open up the ICs window (blue button upper left) Click the box on the left next to u1 Use the scrollbuttons on the right to scroll down to u100 click the box next to it Click on the button that says Array A new window appears. Click on redraw Time is going down and space is horizontal. See the emergence of vertical stripes!