| Abstract Interface | Location | Description |
|---|---|---|
| density_summation_fcn | spx_density_summation | Density summation |
| external_force_fcn | spx_external_force | Solve the external force |
| internal_force_fcn | spx_internal_force | Internal force function |
| kernel_fcn | spx_smoothed_kernel_function | Kernel function |
| p_water_fcn | spx_eos | EoS for water |