def __contains__(self, x): """ TESTS:: sage: [0] in IntegerVectors(0) True sage: [0] in IntegerVectors(0, 1) True sage: [] in IntegerVectors(0, 0) True sage: [] in IntegerVectors(0, 1) False sage: [] in IntegerVectors(1, 0) False sage: [3] in IntegerVectors(3) True sage: [3] in IntegerVectors(2,1) False sage: [3] in IntegerVectors(2) False sage: [3] in IntegerVectors(3,1) True sage: [3,2,2,1] in IntegerVectors(9) False sage: [3,2,2,1] in IntegerVectors(9,5) False sage: [3,2,2,1] in IntegerVectors(8) True sage: [3,2,2,1] in IntegerVectors(8,5) False sage: [3,2,2,1] in IntegerVectors(8,4) True sage: [3,2,2,1] in IntegerVectors(8,4, min_part = 1) True sage: [3,2,2,1] in IntegerVectors(8,4, min_part = 2) False """ if x not in IntegerVectors(): return False if sum(x) != self.n: return False if len(x) != self.k: return False if self.constraints: if not misc.check_integer_list_constraints( x, singleton=True, **self.constraints): return False return True
def __contains__(self, x): """ EXAMPLES:: sage: [0,3,0,1,2] in IntegerVectors(6) True sage: [0,3,0,1,2] in IntegerVectors(6, max_length=3) False """ if self._constraints: return x in IntegerVectors_all() and misc.check_integer_list_constraints(x, singleton=True, **self._constraints) else: return x in IntegerVectors_all() and sum(x) == self.n
def __contains__(self, x): """ EXAMPLES:: sage: [0,3,0,1,2] in IntegerVectors(6) True sage: [0,3,0,1,2] in IntegerVectors(6, max_length=3) False """ if self.constraints: return x in IntegerVectors_all() and misc.check_integer_list_constraints(x, singleton=True, **self.constraints) else: return x in IntegerVectors_all() and sum(x) == self.n
def __contains__(self, x): """ TESTS:: sage: [0] in IntegerVectors(0) True sage: [0] in IntegerVectors(0, 1) True sage: [] in IntegerVectors(0, 0) True sage: [] in IntegerVectors(0, 1) False sage: [] in IntegerVectors(1, 0) False sage: [3] in IntegerVectors(3) True sage: [3] in IntegerVectors(2,1) False sage: [3] in IntegerVectors(2) False sage: [3] in IntegerVectors(3,1) True sage: [3,2,2,1] in IntegerVectors(9) False sage: [3,2,2,1] in IntegerVectors(9,5) False sage: [3,2,2,1] in IntegerVectors(8) True sage: [3,2,2,1] in IntegerVectors(8,5) False sage: [3,2,2,1] in IntegerVectors(8,4) True sage: [3,2,2,1] in IntegerVectors(8,4, min_part = 1) True sage: [3,2,2,1] in IntegerVectors(8,4, min_part = 2) False """ if x not in IntegerVectors(): return False if sum(x) != self.n: return False if len(x) != self.k: return False if self._constraints: if not misc.check_integer_list_constraints(x, singleton=True, **self._constraints): return False return True