The INonLoVariables interface contains properties and methods used to work with the collection of non-linear optimization variables.
| Property name | Brief description | |
| Count | The Count property returns number of variables in the collection. | |
| Item | The Item property returns a variable from the collection based on its index. |
| Method name | Brief description | |
| Add | The Add method adds a summand to the collection. | |
| Clear | The Clear method removes all summands from the collection. | |
| FindById | The FindById method searches the variable in the collection by its identifier. | |
| Remove | The Remove method removes the variable from the collection by its index. | |
| RemoveById | The RemoveById method removes the variable from the collection by its identifier. |
See also: