我有一個朱莉婭代碼： using DifferentialEquations
using Plots
using ParameterizedFunctions
plotly()
lorenz = @ode_def Lorenz begin
dx = σ*(y-x)
dy = ρ*x-y-x*z
dz = x*y-β*z
end σ = 10. β = 8./
我試圖用DifferentialEquation.jl包來解決ode45差分方程，但我得到一個方法錯誤。 using DifferentialEquations
M = 400; m = 35;
C = 3e3; c = 300;
K = 50e3; k = 200e3;
A = 0.05; L = 0.5; vh = 13.9
MM = [M 0;
0 m] # mas