# Vector

06-27-2022 || 22:48
Tags: #linear-algebra #math

# vector

A vector is an array of number.
Mostly its a column major matrix, so for $n$ elements the dimension is $n * 1$

Vector in machine learning is represented by lower-case bold variable, like x
For a vector of $n$ elements and real value numbers, it will be denoted as $\mathbb{R}^n$