# UTILS

- [cost_function_matrix](cost_function_matrix.md): Build matrices for cost function
- [cost_value](cost_value.md): Calculate the total cost
- [local_constraint_matrix](local_constraint_matrix.md): Build local constraint matrices
- [penalty_matrix](penalty_matrix.md): Build matrices for penalty cost calculation
- [uf_subproblem](uf_subproblem.md): Solve the sub-optimization problem in distributed algorithm for user friendly problem


```{toctree}
:maxdepth: 2
:hidden:

cost_function_matrix
cost_value
local_constraint_matrix
penalty_matrix
uf_subproblem
```