## Redundancy Test

C3D Solver provides various ways to evaluate the redundancy of
constraints.

The methods

```cpp
GCE_result GCE_DeviateDimension(GCE_system gSys, constraint_item dItem, double delta)   
```

```cpp
GCE_result GCE_DeviationTest(GCE_system gSys, constraint_item dItem, double delta) 
```

evaluate the redundancy of constraints based on dimension constraint
deviations.