1 0 GfsPoisson GfsBox GfsGEdge {} {
    Time { iend = 10 }
    Refine LEVEL
    Solid ({
            double dr = 0.1;
            double theta = atan2 (y, x);
            double radius = 0.79*(0.45 - dr + dr*cos (6.*theta));
            return x*x + y*y - radius*radius;
          })
    ApproxProjectionParams { nrelax = 4 tolerance = 1e-30 erelax = 2 }
    Init {} {
        Div = {
            int k = 3, l = 3;
            return -M_PI*M_PI*(k*k + l*l)*sin (M_PI*k*x)*sin (M_PI*l*y);
        }
    }
    OutputTime { istep = 1 } {
        awk '{print n++, $8}' > time
    }
    OutputProjectionStats { istep = 1 } {
        awk '{
      if ($1 == "niter:") printf ("%d ", $2);
      if ($1 == "residual.infty:") print $3 " " $4;
    }' > proj
    }
    OutputSimulation { start = end } sim-LEVEL { variables = P }
}
GfsBox {}