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 …

如果 a x = N （a>0，且 a≠1），那么数 x 叫做以 a 为底的 N 的对数（Logarithm）， 记作 x = log a N 。 其中，a 叫做对数的底数，N 叫做真数。 底数：输入对数计算的底数，底数要求 >=0 且 …

Enter the logarithmic expression below which you want to simplify. The logarithm calculator simplifies the given logarithmic expression by using the laws of logarithms. Click the blue …

2023年5月3日 · In this maths article, we will learn about the value of Log 12 introduction, Value of log 12 in common log , Value of log 12 in natural log, how to find value of log 12, and solved …

\log_{3}(81) \log_2(30)-\log_2(15) Show More; Description. Simplify logarithmic expressions using algebraic rules step-by-step logarithms-calculator. en. Related Symbolab blog posts. Middle …

Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.

Log Calculator (Logarithm) Please provide any two values to calculate the third in the logarithm equation log b x=y. It can accept "e" as a base input.

Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history, geography, …

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

对数表. 以10为底，以2为底和以e（ln）为底的对数表：