docs: public static void divide(double alpha , DMatrixD1 a , DMatrixD1 b)
      {
          b.reshape(a.numRows,a.numCols);
  
          final int size = a.getNumElements();
  
          for( int i = 0; i < size; i++ ) {
              b.data[i] = alpha/a.data[i];
          }
      }