 }
 
 /**
- Adjacency matrices for undirected graphs.
+ Adjacency matrices for general graphs.
 
  The `AdjacencyMatrix` class is only capable of keeping track of the size and
  shape of the matrix.  To use adjacency matrices as graphs, use its subclasses,

    }

    /**
     Removes a given row from the matrix.  Returns `Bit.One` if the row
     was in the matrix, or `.Zero` otherwise.

     - parameter row: The row to be removed.

     - complexity: O(`nRows` * `nCols`)
    */

     column was in the matrix, or `.Zero` otherwise.

     - parameter col: The column to be removed.

     - returns: `Bit.One` if the column was in the matrix, or `.Zero` otherwise.

     - complexity: O(`nRows` * `nCols`)
    */
