docs: public static double elementMinReal( ZMatrixD1 a ) {
          final int size = a.getDataLength();
  
          double min = a.data[0];
          for( int i = 2; i < size; i += 2 ) {
              double val = a.data[i];
              if( val < min ) {
                  min = val;
              }
          }
  
          return min;
      }