docs: public static boolean checkSubtract(INDArray first, INDArray second, double maxRelativeDifference,
                      double minAbsDifference) {
          RealMatrix rmFirst = convertToApacheMatrix(first);
          RealMatrix rmSecond = convertToApacheMatrix(second);
  
          INDArray result = first.sub(second);
          RealMatrix rmResult = rmFirst.subtract(rmSecond);
  
          if (!checkShape(rmResult, result))
              return false;
          boolean ok = checkEntries(rmResult, result, maxRelativeDifference, minAbsDifference);
          if (!ok) {
              INDArray onCopies = Shape.toOffsetZeroCopy(first).sub(Shape.toOffsetZeroCopy(second));
              printFailureDetails(first, second, rmResult, result, onCopies, "sub");
          }
          return ok;
      }