log* 即表示疊代對數,是目前增長最慢的函式之一,更緩慢的有log**,log***.....
基本介紹
- 中文名:疊代對數
- 外文名:log*
- 底數範圍:>e^(1/e)=1.444667
- :
x | log2* x |
(−∞, 1] | 0 |
(1,2] | 1 |
(2,4] | 2 |
(4,16] | 3 |
(16,65536] | 4 |
(65536,2^65536] | 5 |
底數不得低於e^(1/e)=1.444667,否則log*會變得無意義
log* 即表示疊代對數,是目前增長最慢的函式之一,更緩慢的有log**,log***.....
x | log2* x |
(−∞, 1] | 0 |
(1,2] | 1 |
(2,4] | 2 |
(4,16] | 3 |
(16,65536] | 4 |
(65536,2^65536] | 5 |