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이진 로그 각주 같이 보기 둘러보기 메뉴

로그미적분학


로그2의 거듭제곱












이진 로그




위키백과, 우리 모두의 백과사전.






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양의 실수 x에 대한 y = log 2 x 함수의 그래프


수학에서 이진 로그 (binary logarithm)는 밑이 2인 로그이다. log 2  또는 lb[1]로 표기하며, 2의 거듭제곱의 역함수이다. 양의 실수 n과 실수 x에 대하여 x = log 2 n은 2x = n이라는 것과 같다.


x=log2⁡n⟺2x=n.displaystyle x=log _2nquad Longleftrightarrow quad 2^x=n.

예를 들어 log 2 1 = 0, log 2 2 = 1, log 2 4 = 2, log 2 32 = 5이다.



각주




  1. ↑ ISO 31-11과 ISO 80000-2




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원본 주소 "https://ko.wikipedia.org/w/index.php?title=이진_로그&oldid=23738559"










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