کسی میتونه بگه این کد ناقصه:import numpy as np import sympy # Define symbols and function t = sympy.symbols('t') y = sympy.Function('y') # Differential equation (example: y'' + 2y' + y = sin(t)) # Intentionally incorrect definition of the differential equation # The original code had issues in how it represented the equation structure. eq = y(t).diff(t, 2) + 2*y(t).diff(t) + y(t) # This line was likely just the expression, not an Equation object # Initial conditions (example: y(0) = 1, y'(0)