Logarithmic scale A logarithmic chart depicting the value of one Goldmark in Papiermarks during the German hyperinflation in the …

In its simplest form, a logarithm answers the question: How many of one number multiply together to make another number?

Toggle the table of contents Logarithmic scale

Jul 24, 2026 · Logarithm, the exponent or power to which a base must be raised to yield a given number.

Apr 21, 2026 · Logarithmic Function A logarithmic function is the inverse of an exponential function and is defined for positive real …

Logarithmic spirals are common in nature. Examples include the shell of a nautilus, or the arrangement of seeds on a sunflower. In …

The logarithm log_bx for a base b and a number x is defined to be the inverse function of taking b to the power x, i.e., b^x. Therefore, …

Sal explains what logarithms are and gives a few examples of finding logarithms.

An exponential equation is converted into a logarithmic equation and vice versa using b x = a ⇔ log b a = x. A common log is a …

What's next? Learn about the properties of logarithms that help us rewrite logarithmic expressions, and about the change of base …