boundary_types = p,-g
boundary_values = 4,-1
initial_gradients = 0.7,-1.5,-1.5,0.7,0.0,-0.7,1.8,0.5,-1.3,1000.0,1.3,-0.5
reflection_path = (3,2),(2,2),(2,3),(3,2),(3,3),(2,3),(3,3),(3,4),(2,3),(3,3),(3,4),(3,3),(4,3)
grid_size = 5
max_radius = 90%
store_calc = false