def _fix(self, matrix):
constraints = []
rows,cols = intf.size(matrix)
for i in range(rows):
for j in range(cols):
if matrix[i, j] == 0:
constraints.append(self[i, j] == 0)
return constraints
def test_coefficients(self):
exp = AffVstack(self.x)
coeffs = exp.coefficients(self.intf)
self.assertEqual(coeffs.keys(), self.x.coefficients(self.intf).keys())
exp = AffVstack(self.x, self.y)
coeffs = exp.coefficients(self.intf)
self.assertItemsEqual(coeffs.keys(),
self.x.coefficients(self.intf).keys() + \
self.y.coefficients(self.intf).keys())
for k,v in coeffs.items():
self.assertEqual(intf.size(v), (4,2))
exp = AffVstack(self.A, self.B, self.C)
coeffs = exp.coefficients(self.intf)
v = coeffs[self.A]
self.assertEqual(intf.size(v), (10,3))
def _fix(self, matrix):
constraints = []
rows, cols = intf.size(matrix)
for i in range(rows):
for j in range(cols):
if matrix[i, j] == 0:
constraints.append(self[i, j] == 0)
return constraints