計算使用二維數組數：ValueError異常：數學域錯誤

Question

想做使用數字計算的二維數組

import math 
result = 0 
data = [[0],[1],[1],[1],[0],[1],[1],[1]] 
for i in data: 
    result += (math.log(i[0], 2)) 

報告的錯誤是ValueError: math domain error

有人能告訴我什麼是不對的碼？

Answer 1

log 0 is undefined. It's not a real number, because you can never get zero by raising anything to the power of anything else. You can never reach zero, you can only approach it using an infinitely large and negative power. 3.

>>> math.log(0) 
Traceback (most recent call last): 
    File "<stdin>", line 1, in <module> 
ValueError: math domain error