이진 로그 각주 같이 보기
로그2의 거듭제곱
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이진 로그
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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=log2n⟺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
↑ ISO 31-11과 ISO 80000-2
같이 보기
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