is_zero()

virtual bool Ring::is_zero ( const ring_elem f ) const

pure virtual

Implemented in FractionField, GF, LocalRing, M2::ConcreteRing< RingType >, M2::ConcreteRing< ARingQQ >, M2::ConcreteRing< M2::ARingCCC >, M2::ConcreteRing< M2::ARingRRR >, M2FreeAlgebra, M2FreeAlgebraQuotient, PolyRing, PolyRingQuotient, RingZZ, SchurRing2, Tower, and Z_mod.

Referenced by add_vec_to(), divide_row(), divide_vec_to(), FractionField::eval(), LocalRing::eval(), M2::ARingGFFlintBig::eval(), IM2_RingElement_is_zero(), RingElement::is_zero(), lower_associate_divisor(), lower_content(), make_vec(), mult_row(), mult_vec(), mult_vec_to(), power(), power(), preferred_associate(), quotient(), rawMutableMatrixFillRandom(), rawMutableMatrixFillRandomDensity(), remainder(), remainderAndQuotient(), rightmult_vec(), set_entry(), TEST(), MutableMatrix::text_out(), vec_diff(), vec_divide_by_expvector(), vec_divide_by_var(), vec_eval(), vec_homogenize(), and vec_zeroize_tiny().