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单词 Discrete logarithm
释义

Discrete logarithm

中文百科

离散对数

离散对数英语:Discrete logarithm)是在整数中,一种基于同余运算和原根的一种对数运算。

当模m有原根时,设l为模m的一个原根,则当x \equiv l^k \pmod{m}时:

Ind_{l} x \equiv k \pmod{\phi (m)},此处的Ind_{l} xx以整数l为底,模\phi (m)时的离散对数值

英语百科

Discrete logarithm 离散对数

In mathematics, a discrete logarithm is an integer k solving the equation b = g, where b and g are elements of a finite group. Discrete logarithms are thus the finite-group-theoretic analogue of ordinary logarithms, which solve the same equation for real numbers b and g, where b is the base of the logarithm and g is the value whose logarithm is being taken.

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更新时间:2025/6/19 12:13:31