normSquared()

template<typename MatType>

void normSquared	(	SubMatrix< MatType >	M,
		typename MatType::CoeffRing::RealElementType &	result )

Definition at line 185 of file mat-arith.hpp.

{
  const auto& C = M.matrix.ring();
  const auto& R = C.real_ring();
  typename MatType::CoeffRing::RealRingType::Element c(R);
  R.set_zero(result);
  for (long rA = M.begin_row; rA < M.end_row; ++rA)
    for (long cA = M.begin_column; cA < M.end_column; ++cA)
      {
        C.abs_squared(c, M.matrix.entry(rA, cA));
        R.add(result, result, c);
      }
}

References SubMatrix< MatType >::begin_column, SubMatrix< MatType >::begin_row, SubMatrix< MatType >::end_column, SubMatrix< MatType >::end_row, SubMatrix< MatType >::matrix, and result().

Referenced by HomotopyConcrete< RT, FixedPrecisionHomotopyAlgorithm >::track().