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

Natural Logarithm:

The natural logarithm is the logarithm having base e.

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)

	Asymptote	Normal Vector
	Complex Conjugate	Parabola
	Complex Number	Parametric Equations
	Complex Plane	Plane
	Conic Section	Plane Curve
	Cross Product	Polar Coordinates
	Curve	Range
	Determinant	Rational Function
	Domain	Reflection
	Dot Product	Rotation
	Ellipse	Rotation Matrix
	Function	Scalar
	Hyperbola	Spherical Coordinates
	i	Tangent Line
	Imaginary Number	Translation
	Inverse Function	Vector
	Locus