假設有耦合PDE的一個系統,諸如 第一PDE在F(A,B) 第二PDE在F(A,B) 以下代碼能夠分別解決每個PDE: import numpy as np
import sympy as sp
# definition of variables
a, b = sp.symbols('a b')
f = sp.Function('f')
F = f(a, b)
Fda = F.dif
enter image description here如何在此圖中繪製線性迴歸線? 這裏是我的代碼: import numpy as np
import pandas_datareader.data as web
import pandas as pd
import datetime
import matplotlib.pyplot as plt
#get adjusted close