为什么会发生？
因此，我已经启动了一个程序来计算一个数字的第n个词：
*x = float(input('Enter a number: '))
n = float(input('Enter the root you would like to calculate: '))
result=x**(1/float(n))
print(f'The {n}th root of = {x} is:',result)*
该程序可与每个数字和根一起使用，但是当我输入x = 64和n = 3时，它显示了以下内容： 3.0 = 64.0的根是：3.9999999999999996
So, I've started a program to calculate the nth root of a number:
*x = float(input('Enter a number: '))
n = float(input('Enter the root you would like to calculate: '))
result=x**(1/float(n))
print(f'The {n}th root of = {x} is:',result)*
The program works with every number and root, but when I enter as x=64 and n=3 it shows this:
The 3.0 root of = 64.0 is: 3.9999999999999996
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如评论中所述，这是浮点数学的性质。
就您而言，您可以在F弦中使用指定符来控制您的打印内容：
As noted in comments, this is the nature of floating point math.
In your case, you can control what you print with a specifier in an f-string:
它是因为浮点被存储的方式。通常，您会看到这样的东西，一个解决方案是始终将结果归结为最近的千分之一。
Its because of the way floating point is stored. Often you'll see stuff like this, a solution is to always round result to the nearest like, thousandth.