n_fraction_vars()

virtual int PolynomialRing::n_fraction_vars ( ) const

inlinevirtual

Definition at line 295 of file polyring.hpp.

  {
    const Ring *D = getDenominatorRing();
    if (D == 0) return 0;
    const PolynomialRing *DR = D->cast_to_PolynomialRing();
    if (DR == 0) return 0;
    return DR->n_vars();
  }

References Ring::cast_to_PolynomialRing(), getDenominatorRing(), n_vars(), PolynomialRing(), and Ring::Ring().

Referenced by gbA::initialize().