>
restart;
>
f:=(x,t)->1+1/(8*Pi)*(sin(2*Pi*(x+2*t))-sin(2*Pi*(x-2*t)));
>
plot3d(f(x,t), x=-0.5..1, t=0..1, axes=boxed, lightmodel=light2);
>
plot3d(f(x,t), x=-0.5..1, t=0..1, axes=boxed, lightmodel=light2);
>