isZero() [1/2]

template<typename RT>

bool MatrixOps::isZero

(

const DMat< RT > &

A

)

Definition at line 213 of file mat-arith.hpp.

{
  for (int r = 0; r < A.numRows(); ++r)
    for (int c = 0; c < A.numColumns(); ++c)
      if (!A.ring().is_zero(A.entry(r,c))) return false;
  return true;
}

References DMat< ACoeffRing >::entry(), DMat< ACoeffRing >::numColumns(), DMat< ACoeffRing >::numRows(), and DMat< ACoeffRing >::ring().

Referenced by fill_from_lapack_upper(), fill_from_lapack_upper(), fill_lower_and_upper(), fill_lower_and_upper(), MutableMat< Mat >::is_zero(), DMatLinAlg< RingType >::setUpperLower(), LUUtil< RT >::setUpperLower(), and TEST().