Returns TRUE if x is not equal to y. Otherwise, this function returns FALSE. You can change the comparison mode of this function.
If you compare two matrices, the default comparison mode is Compare Aggregates, and this function returns a scalar. You can compare an array or cluster of a data type to a scalar of the same data type and produce an array or cluster of Booleans. The connector pane displays the default data types for this polymorphic function.

When comparing VI Server references, this function returns FALSE when the two references refer to the same object, regardless of whether the references have the same capability or the same value. For example, one might be a strict reference to a digital numeric control and the other might be a generic reference but if they refer to the same object, they are equal. Also, if you have a local reference and a remote reference to the same LabVIEW object, this function returns TRUE. However, when two references refer to the same object but one of them is authenticated and the other is not, this function still returns FALSE.
When you wire a matrix data type as an input to this function, a VI that includes subVIs that work with the matrix data type replaces the function. The resulting VI has the same icon but contains a matrix-specific algorithm. The node remains a VI if you disconnect the matrix from the input(s). Wire other data types as inputs to restore the original function. If you wire a data type to a function and that data type causes a basic math operation to fail, the function returns an empty matrix or NaN.
Refer to the Equal - Various Uses VI in the labview\examples\general\functions\Comparison directory for an example of using the Not Equal? function.