# 4.1: Creating Vectors

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A vector in MATLAB is a sequence of numbers. There are several ways to create vectors; one of the most common is to put a sequence of numbers in square brackets:

>> [1 2 3]
ans = 1     2     3

Another way to create a vector is the colon operator, which we have already used to create a range of values in a for loop.

>> 1:3
ans = 1     2     3

In general, anything you can do with a number, you can also do with a vector. For example, you can assign a vector value to a variable:

>> X = [1 2 3]
X = 1     2     3

Note that variables that contain vectors are often capital letters. That’s just a convention; MATLAB doesn’t require it, but it’s a useful way to remember which variables are vectors.

This page titled 4.1: Creating Vectors is shared under a CC BY-NC-SA 4.0 license and was authored, remixed, and/or curated by Carey Smith via source content that was edited to the style and standards of the LibreTexts platform; a detailed edit history is available upon request.