合集-数学建模习题第七章
数学建模例题7.3
摘要:`import numpy as np import pylab as plt from scipy.interpolate import lagrange yx = lambda x: 1/(1+x**2) def fun(n): x = np.linspace(-5, 5, n+1) p = l 阅读全文
posted @ 2024-10-29 14:44 VVV1 阅读(42) 评论(0) 推荐(0)
数学建模例题7.4
摘要:`import numpy as np from scipy.interpolate import interp1d from scipy.interpolate import lagrange import pylab as plt a = np.loadtxt('data7_4.txt') x0 阅读全文
posted @ 2024-10-29 14:46 VVV1 阅读(38) 评论(0) 推荐(0)
数学建模习题7.1
摘要:`import numpy as np import scipy.interpolate as spi import scipy.integrate as spi_integrate 定义函数 g(x) def g(x): return ((3x**2 + 4x + 6) * np.sin(x)) 阅读全文
posted @ 2024-11-17 13:16 VVV1 阅读(43) 评论(0) 推荐(0)
数学建模习题7.3
摘要:`import numpy as np import matplotlib.pyplot as plt from scipy.interpolate import interp1d, CubicSpline 已知的温度和对应的体积 T_known = np.array([700, 720, 740, 阅读全文
posted @ 2024-11-17 13:32 VVV1 阅读(64) 评论(0) 推荐(0)
数学建模习题7.4
摘要:`import numpy as np import matplotlib.pyplot as plt from scipy.interpolate import griddata def f(x, y): x2 = x2 return (x2 - 2*x) * np.exp(-x2 - y2 - 阅读全文
posted @ 2024-11-17 14:41 VVV1 阅读(29) 评论(0) 推荐(0)
数学建模习题7.7
摘要:`import numpy as np import matplotlib.pyplot as plt from scipy.optimize import curve_fit, leastsq, least_squares 定义函数 g(x, a, b) def g(x, a, b): retur 阅读全文
posted @ 2024-11-17 14:49 VVV1 阅读(36) 评论(0) 推荐(0)
数学建模习题7.10
摘要:`import numpy as np import pandas as pd import matplotlib.pyplot as plt from scipy.interpolate import interp1d, PchipInterpolator, CubicSpline from sc 阅读全文
posted @ 2024-11-17 14:57 VVV1 阅读(35) 评论(0) 推荐(0)