The Matrix Gain component computes the product of a gain matrix, K, with the input vector .
To change the dimensions of the gain matrix, right-click (Control-click for Mac) the K parameter field and select Edit Matrix Dimensions. You can then specify the number of rows and columns to include in the matrix.
Note: The context menu operation for setting the matrix dimension is not available if the parameter field is blank. In this case, you must enter a matrix as a list of lists, for example, [[1,2],[3,4]].