如何在Python 3.X中使用内置math模块？

Question

我是一名初学者，刚开始学习Python。我在程序中尝试使用math.log10(x)，但是总是出现“NameError: name 'math' is not defined”的错误。虽然在我输入的时候会弹出提示，看起来我应该可以使用这个功能。但我读过的指南对如何正确引入一个模块说得不多，所以我有点迷茫。

这是我现在的程序：

print("Enter an integer 'n' that is greater than 1: ")
n = int(input())

Primes = [2]
 #List of Prime Numbers
Candidate = 3
 #Number tested for Primeness
Product = 1
 #Running product of prime numbers < n
Logarithm = True
 #Will be the log of the product of the primes
##Ratio = True
## #Will be the ratio of the Logarithm to n

while Primes[len(Primes)-1] <= n:
     #Continue only while Primes < n
IsPrime = True
i=0
while i < len(Primes):
    if Candidate%Primes[i] == 0:
        IsPrime = False
    else:
        Product = Product * Candidate
         #Multiplies the current product by the newest prime < n
    i = i + 1   
if IsPrime:
    Primes.append(Candidate)
     #Adds newest prime to the list
Candidate = Candidate + 1

Logarithm = math.log10(Product)

我知道这是个很基础的问题，但我真的需要帮助。谢谢你！

Answer 1

在程序的最上面输入“import math”。