...求助一个简单的迭代算法
x_n+1 = r * x_n * (1 - x_n)If I specify x_0 and r to be something (both between but not including 0 and 1), then, for example, if x_0 = 0.1, r = 0.5, then
x_1 = 0.5 * 0.1 * (1 - 0.1) = 0.09 * 0.5 = 0.045
x_2 = 0.045 * 0.1 * (1 - 0.045) = something
and so on. What I want you to do is to write a solver in Microsoft Excel that generates some iterations (say up to about x_100 or x_200), plot the resulting evolution of the iterations
我的代码是：
import numpy as np
def func(n):
n = 0
for n in np.arange(0,101):
if n == 0:
return 0.045
n += 1
else:
return 0.5 * func(n-1) * (1 - func(n-1))
print(func(n))
为什么一直说我n没有定义呢？？？？ print(func(n))
这一句n得是一个实际的值或有给n赋值 你告诉我哪里定义了？ x0 = 0.1
r = 0.5
def iteration(n: int) -> float:
result = x0
while n:
result = r * result * (1 - result)
n -= 1
return result
print(iteration(100))
页:
[1]