docs: public void set( ZMatrixD1 b )
      {
          if( numRows != b.numRows || numCols != b.numCols ) {
              throw new MatrixDimensionException("The two matrices do not have compatible shapes.");
          }
  
          int dataLength = b.getDataLength();
  
          System.arraycopy(b.data, 0, this.data, 0, dataLength);
      }