对数是数学代数中重要的组成部分，对数是对求幂的逆运算，对数的一般形式为x=logₐN（a>0，且a≠1），其中a叫做对数的底数，N叫做真数。 使用对数计算器，我们只需输入对数的底数和真数，即可快速计算出对数，节约人工运算时间，提升对数的运算效率，为 ...

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1.如果ax=N (a>0,且a≠1)，则x叫做以a为底N的对数,记做x=log a N，其中a要写于log右下。 其中a叫做对数的底，N叫做真数. 2.特别地，我们称以10为底的对数叫做常用对数（common logarithm），并记为lg。 3.称以无理数e（e=2.71828...）为底的对数称为自然对数（natural logarithm），并记为ln。 4.零没有对数。

Calculate value of Log(305) or Calculate value of Log, Antilog, Natural Log (nlog), and Exponent of a number. A common logarithm is the logarithm with base 10, also known as the decadic logarithm or decimal logarithm.

y = log b x. 反对数（或逆对数）是通过将基数 b 提升到对数 y 来计算的： x = log b-1 (y) = b y. 对数规则 对数乘积规则. log b (x × y) = log b (x) + log b (y) 对数商规则

Logarithm (LOG) calculator is an online math calculator that calculates the log value for the positive real number with respect to the given or natural base values (positive, not equal to $1$). Using this calculator, we will understand methods of how to find the logarithm of any number with respect to the given base.

This free log calculator solves for the unknown portions of a logarithmic expression using base e, 2, 10, or any other desired base.

If $a > b > 1$ and $\frac{1}{log_a(b)} + \frac{1}{log_b(a)} = \sqrt{1229}$ , find the value of :- $\frac{1}{log_{ab}(b)} - \frac{1}{log_{ab}(a)}$

2018年4月25日 · If $\log_{30}3=a,\log_{30}5=b$ then show what $\log_{30}8$ is. I am having trouble trying to get 8 to be some sequence with 5,30,3. Any hints?

The natural logarithm of 305 is 5.7203117766074 or ln(305) = 5.7203117766074.. Notes: i) e and e and