How to denote vertical dots symbol in LaTeX?

Vertical dots are a symbol consisting of a combination of three dots along the vertical. With the help of this vertical dot symbol, I represent different mathematical expressions. Such as the matrix.

To represent latex vertical dots symbol, you need to use the \vdots command.

\documentclass{article}
\begin{document} 
   \[ \vdots \] 
\end{document}

Output :

In matrix, when n numbers elements are arranged along the row.

In that case, the vertical dots symbol is used instead of representing all the elements in the matrix along the vertical row.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
\[ \begin{bmatrix}
    a_{11}& a_{12} & a_{13} \\ 
    a_{21}& a_{22} & a_{23} \\ 
    \vdots & \vdots  & \vdots \\
    a_{n1} & a_{n2} & a_{n3} 
\end{bmatrix} \]
\end{document}

Output :

To represent the matrix with latex, you first need to create a matrix environment. And then you have to insert the elements in the matrix.

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