函数交点

日期2009-07-31 (最后修改), 2009-07-31 (创建)

查找两个给定函数的交点¶

考虑查找多项式和直线交点的示例

$y_1=x_1^2$

$y_2=x_2+1$

在 [2]

from scipy.optimize import fsolve

import numpy as np

def f(xy):
   x, y = xy
   z = np.array([y - x**2, y - x - 1.0])
   return z

fsolve(f, [1.0, 2.0])

输出[2]

array([ 1.61803399,  2.61803399])

另请参阅: https://docs.scipy.org.cn/doc/scipy/reference/generated/scipy.optimize.fsolve.html#scipy.optimize.fsolve

章节作者: nokfi