Python ODEINT无法调用函数

因此，我试图解决一个由三个ODE组成的系统，并开发了以下代码来使用ODEint解决它们。但是当我运行时，ODEint在调用方程组的函数时遇到了一个问题

from scipy.integrate import odeint



#initial parameters
X0 = 75.
M0 = 150.
G0 = 105.
N0 = 80.
T0 = 7.
u10 = 0.0301231859
u20 = 0.0078947020
u30 = 0.0010708464
Rxg = 1.92
Rxm = 3.84
Rxma = 5.76

#define system of equations
def sugar(t,y,u10,u20,u30,Rxg,Rxm,Rxma):
    ddt = [-u10*(X0+(Rxg*(G0-y[0]))+(Rxm*(M0-y[1]))+(Rxma*(N0-y[2]))),
           -u20*(X0+(Rxg*(G0-y[0]))+(Rxm*(M0-y[1]))+(Rxma*(N0-y[2]))),
           -u30*(X0+(Rxg*(G0-y[0]))+(Rxm*(M0-y[1]))+(Rxma*(N0-y[2])))]
    return(ddt)

#time parameter
tinit = 0.
tend = 10.
h = 2.
t = arange(tinit,tend+h,h)

#initial guess
y0 = [G0,M0,N0]

#run odeint
y = odeint(sugar,y0,t,args = (u10,u20,u30,Rxg,Rxm,Rxma))

print 't =',t
print 'y =',y

在我的输出中，我得到：

t = [  0.   2.   4.   6.   8.  10.]
y = [[ 105.  150.   80.]
 [ 105.  150.   80.]
 [ 105.  150.   80.]
 [ 105.  150.   80.]
 [ 105.  150.   80.]
 [ 105.  150.   80.]]
error: Error occurred while calling the Python function named sugar

更改y0和t的顺序仍然会导致相同的错误。我不理解这个错误，也不知道它能引导我解决这个问题。任何帮助都将不胜感激。

根据，糖的签名应为

func(y, t, ...)

而不是

func(t, y ...)

---

屈服

t = [  0.   2.   4.   6.   8.  10.]
y = [[ 105.          150.           80.        ]
 [ 100.02722703  148.69673278   79.82322335]
 [  94.02207128  147.12289808   79.60974661]
 [  86.77020667  145.22232521   79.35195073]
 [  78.01280485  142.92718027   79.04063465]
 [  67.43730555  140.15554729   78.66468719]]

---

更改

y0

和

t

的顺序仍然会导致相同的错误。

t = [  0.   2.   4.   6.   8.  10.]
y = [[ 105.          150.           80.        ]
 [ 100.02722703  148.69673278   79.82322335]
 [  94.02207128  147.12289808   79.60974661]
 [  86.77020667  145.22232521   79.35195073]
 [  78.01280485  142.92718027   79.04063465]
 [  67.43730555  140.15554729   78.66468719]]