(Example 11. See manual. )

echo -no
number_of_space_dimensions 1
wave_scalar
wave_fscalar
end_initia

node 1  0
node 2  1
element 1  -bar2 1 2

geometry_point 1  0. 1.e-4
geometry_point 2  1. 1.e-4

group_type 0  -wave
group_wave_speed_of_sound 0  1.0

bounda_unknown 0  -geometry_point 1 -fscal
bounda_time    0  0. 0. 100. 0.
bounda_force   1  -geometry_point 2 -fscal
bounda_time    1  0. 1.e-4 100. 1.e-4

post_point 1  0.55

control_mesh_refine_globally  10  -h_refinement
control_mesh_refine_globally  20  -h_refinement
control_mesh_refine_globally  30  -h_refinement
control_mesh_refine_globally  40  -h_refinement
control_mesh_refine_globally  50  -h_refinement
control_mesh_refine_globally  60  -h_refinement
control_mesh_refine_globally  70  -h_refinement

control_timestep              80  1.e-3 0.5
control_options_solver        80  -diagonal
(
control_print                80  -time_current
)

(an arbitrary value is checked)
target_item 1  -post_point_dof 1 -fscal
target_value 1  1.e-4 1.e-5
end_data
