# Logarithm

The logarithm is the power to which a number (called the base) must be raised to produce a given number. For example, the logarithm of 100 with respect to the base 10 is 2.

Logarithm is a high school-level concept that would be first encountered in a pre-calculus course covering exponents and logarithms.
It is listed in the California State Standards for Algebra II.

### Examples

### Prerequisites

Exponential Function: |
The exponential function is the function consisting of the base of the natural logarithm *e* taken to the power of a given variable. |

Power: |
In arithmetic, a power is an exponent to which a given quantity is raised. |

### Classroom Articles on Exponents and Logarithms

### Classroom Articles on Pre-Calculus (Up to High School Level)