A logarithm is the power which a certain number is raised to get another number. Before calculators and various types of complex computers were invented it was difficult for scientists and ...

When multiplying two numbers with the same base, you can add the exponents. For example, \(a^m \times a^n = a^{m+n}\). Logarithms are the inverse operation of exponentiation. They help solve equations ...

A scientific calculator has two 'log' buttons on it. These are marked log and ln. The log key is used for calculations of the form \({\log _{10}}x\). For example, to work out that \(\log 10000 = 4\) ...

Now that you know what \({\log _a}x\) means, you should know and be able to use the following results, known as the laws of logarithms.