A
Конечно
def integrate(self, func):
x1, y1 = self[1].x, self[1].y
x2, y2 = self[2].x, self[2].y
x3, y3 = self[3].x, self[3].y
λ1, λ2 = symbols('\lambda_1 \lambda_2')
x_1 = λ1 * x1 + λ2 * x2 + (1 - λ1 - λ2) * x3
x_2 = λ1 * y1 + λ2 * y2 + (1 - λ1 - λ2) * y3
if func != 0:
func = func.subs({symbols('x_1'): x_1,
symbols('x_2'): x_2})
return 2 * self.area * sp_integrate(func, (λ1, 0, 1 - λ2), (λ2, 0, 1)).doit()