# Definition:Vandermonde Determinant

## Definition

The Vandermonde determinant of order $n$ is the determinant defined as one of the following two formulations:

### Formulation 1

$V_n = \begin {vmatrix} 1 & x_1 & {x_1}^2 & \cdots & {x_1}^{n - 2} & {x_1}^{n - 1} \\ 1 & x_2 & {x_2}^2 & \cdots & {x_2}^{n - 2} & {x_2}^{n - 1} \\ \vdots & \vdots & \vdots & \ddots & \vdots & \vdots \\ 1 & x_n & {x_n}^2 & \cdots & {x_n}^{n - 2} & {x_n}^{n - 1} \end {vmatrix}$

### Formulation 2

$V_n = \begin {vmatrix} x_1 & {x_1}^2 & \cdots & {x_1}^n \\ x_2 & {x_2}^2 & \cdots & {x_2}^n \\ \vdots & \vdots & \ddots & \vdots \\ x_n & {x_n}^2 & \cdots & {x_n}^n \end{vmatrix}$

## Also see

• Results about the Vandermonde determinant can be found here.

## Source of Name

This entry was named for Alexandre-Théophile Vandermonde.