code: @Override
      protected double dnrm2(long N, INDArray X, int incx){
          return cblas_dnrm2((int) N, (DoublePointer) X.data().addressPointer(), incx);
      }
docs: Computes the Euclidean norm of a double vector
  @param N The number of elements in vector X
  @param X an INDArray
  @param incx the increment of X