SurfLab 1.0 dim 3 name re[1/(z^2-1)] var1 u var2 v x1 u x2 v x3 re[1/((u+I v)^2-1)] x4 domain triangulated boundary Loop circle 0; 3; 0; 2Pi; 40 Loop circle 1; 0.1; 0; -2Pi; 40 Loop circle -1; 0.1; 0; -2Pi; 40 Hole point 1 point -1 max_area 0.2 min_angle 29 smooth 0 refine 0 max_area2 0 curvature_exp 0 curvature_cut 0