complementary function in Spanish

(mathematics) For a nonhomogeneous linear differential equation a_n y^{(n)} + a_{n-1} y^{(n-1)} + \cdots + a_1 y' + a_0 y = g(x), the general solution of the associated homogenous linear differential equation a_n y^{(n)} + a_{n-1} y^{(n-1)} + \cdots + a_1 y' + a_0 y = 0.