# cut

Tags:

Updated:

cut is used to define user-specified cuts for the global solver BMIBNB.

### Syntax

F = cut(X,'tag')


### Examples

The result from the command is nothing but a standard constraint.

P = sdpvar(2,2);
F = cut((P-eye(2))*(P-eye(2))>=0);
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|   ID|      Constraint|                                Type|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|   #1|   Numeric value|   Matrix inequality (quadratic) 2x2|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


The only difference is that this constraint will not be used in the upper bound problem in the branch & bound procedure. The constraint will thus only be used to improve the lower bound relaxations.