合集-python数学建模第八章

摘要：import numpy as np import matplotlib.pyplot as plt from scipy.integrate import solve_ivp plt.rcParams['text.usetex'] = False def model(t, y): f, df_dm 阅读全文

摘要：import numpy as np from scipy.integrate import solve_ivp import matplotlib.pyplot as plt def differential_equations(t, z): x, y = z dx_dt = -x ** 3 - 阅读全文

摘要：import numpy as np import matplotlib.pyplot as plt a = 1 - 0.2*(1/12) m = 1.109 * 10**5 w3 = 17.86 w4 = 22.99 X = [] Z = [] for k in np.arange(0, 0.87 阅读全文

摘要：loan_amount = 600000 - 200000 月利率 monthly_interest_rate = 0.0036 贷款期限（月） loan_term_months = 30 * 12 每月还款额 = 贷款本金×月利率×(1 + 月利率)^n÷((1 + 月利率)^n - 1)，其中 阅读全文