scipy odeint如何解决这个微分方程?
作者:互联网
我正在尝试使用scipy odeint解决以下微分方程式,但没有取得很大的成功:
import numpy as np
from scipy.misc import derivative
from scipy.integrate import odeint
Imag = 16000.
w = 2*np.pi*60
tau = .05
theta = 1.52
phi = theta - np.radians(90)
t = np.linspace(0,.1,10000)
def Ip(t):
return np.sqrt(2)*Imag*(np.sin(w*t+phi-theta)-np.exp(-t/tau)*np.sin(phi-theta))
B = lambda Ip: Ip/(53.05+0.55*abs(Ip))
def L(B):
return derivative(B,Ip(t))*377.2
def dI(t):
return derivative(Ip,t)
def f(y,t):
Rb = 8.
N = 240.
Is = y[0]
f0 = (1/(L(B)+0.002))*((dI(t)*L(B)/N)-Rb*y[0])
return [f0]
yinit = [0]
sol = odeint(f,yinit,t)
print sol[:,0]
我不断收到以下错误:
odepack.error: Result from function call is not a proper array of floats.
ValueError: object too deep for desired array
odepack.error: Result from function call is not a proper array of floats.
我应该怎么做才能正确运行脚本?
解决方法:
怎样用ode而不是odeint
有一个非常类似于您的问题:
How to make odeint successful?
标签:python,scipy,ode 来源: https://codeday.me/bug/20191012/1900880.html