# local_constraint_matrix

> Build local constraint matrices

---

## Description
local_constraint_matrix builds local constraint matrices A and b for each charger given information from a scenario.

## Syntax
```matlab
[A,b,empty_ind] = local_constraint_matrix(N_c,T,Delta,EVs)
```

## Input Arguments
| Name | Type | Description |
|------|------|--------------|
| `N_c` | *positive integer* | Number of chargers |
| `T` | *positive integer* | Number of time slots |
| `Delta` | *positive scalar* | Length of time slot [minutes] |
| `EVs` | *EV array* | Array of EV objects |


## Output Arguments
| Name | Type | Description |
|------|------|--------------|
| `A` | *N_c×1 cell array* | Cell consisting of matrices for inequality constraint (for each charger) |
| `b` | *N_c×1 cell array* | Cell consisting of matrices for inequality constraint (for each charger) |
| `empty_ind` | *T×N_c matrix* | Index for empty time slots |