Sage Reference Manual
sage-6.8/src/doc/output/html/en/reference / polynomial_rings / _sources / polynomial_rings_multivar.txt
723862 views1Multivariate Polynomials and Polynomial Rings2=============================================34Sage implements multivariate polynomial rings through several5backends. The most generic implementation uses the classes6:class:`sage.rings.polynomial.polydict.PolyDict` and7:class:`sage.rings.polynomial.polydict.ETuple` to construct a dictionary with8exponent tuples as keys and coefficients as values.910Additionally, specialized and optimized implementations over many11specific coefficient rings are implemented via a shared library interface to12SINGULAR; and polynomials in the boolean polynomial ring1314.. math::1516\GF{2}[x_1,...,x_n]/ \langle x_1^2+x_1,...,x_n^2+x_n \rangle.1718are implemented using the PolyBoRi library (cf. :mod:`sage.rings.polynomial.pbori`).192021.. toctree::22:maxdepth: 22324sage/rings/polynomial/term_order2526sage/rings/polynomial/multi_polynomial_ring_generic27sage/rings/polynomial/multi_polynomial2829sage/rings/polynomial/multi_polynomial_ring30sage/rings/polynomial/multi_polynomial_element31sage/rings/polynomial/multi_polynomial_ideal3233sage/rings/polynomial/multi_polynomial_sequence3435sage/rings/polynomial/multi_polynomial_libsingular36sage/rings/polynomial/multi_polynomial_ideal_libsingular3738sage/rings/polynomial/polydict394041