Python homomorphism Examples

Example #1

File: modules.py Project: skolwind/sympy

    def identity_hom(self):
        """
        Return the identity homomorphism on ``self``.

        >>> from sympy.abc import x
        >>> from sympy import QQ
        >>> QQ[x].free_module(2).identity_hom()
        [1, 0]
        [0, 1] : QQ[x]**2 -> QQ[x]**2
        """
        from sympy.polys.agca.homomorphisms import homomorphism
        return homomorphism(self, self, self.basis())

Example #2

    def identity_hom(self):
        """
        Return the identity homomorphism on ``self``.

        >>> from sympy.abc import x
        >>> from sympy import QQ
        >>> QQ.old_poly_ring(x).free_module(2).identity_hom()
        Matrix([
        [1, 0], : QQ[x]**2 -> QQ[x]**2
        [0, 1]])
        """
        from sympy.polys.agca.homomorphisms import homomorphism
        return homomorphism(self, self, self.basis())