( Example 20. See manual. )

echo -no
number_of_space_dimensions 3
derivatives
condif_temperature
residue
end_initia

options_inertia -no

node 1  0 0 0
node 2  1 0 0
node 3  0 1 0
node 4  1 1 0
node 5  0 0 1
node 6  1 0 1
node 7  0 1 1
node 8  1 1 1
element 1  -hex8 1 2 3 4 5 6 7 8

geometry_point 1  0.5 0.5 0.5 1.e-4
geometry_sphere 1  0.5 0.5 0.5 0.866025 1.e-4

bounda_unknown 0  -geometry_sphere 1 -temp
bounda_time    0  0. 0. 100. 0.
bounda_unknown 1  -geometry_point 1 -temp
bounda_time    1  0.0 1.0 100.0 1.

group_type 0  -condif
group_condif_density 0  1.
group_condif_capacity 0  10.
group_condif_conductivity 0  1.

post_point 1  0.25 0.25 0.25
print_filter 1 -post_point_dof 1 -temp

control_mesh_refine_globally             5  -h_refinement
control_mesh_refine_globally_geometry    5 -geometry_sphere 1

control_mesh_refine_globally             6  -h_refinement
control_mesh_refine_globally_geometry    6 -geometry_sphere 1

control_mesh_split                       7  -yes

control_timestep                        10  1. 1.0
(control_print                          10  -time_current -post_point_dof)

control_mesh_refine_locally             15  5.
control_mesh_refine_locally_geometry    15 -geometry_sphere 1

target_item 1  -post_point_dof 1 0
target_value 1  0.23726 1.e-3
end_data
