Vectors

Lesson in the Backend Developer Roadmap · Stage 10: Learn the Basics

Last updated 14 September 2026

What is Vectors?

Vectors are mathematical objects that have both magnitude (length) and direction. They are often represented as ordered lists of numbers, called components. In computer science, and particularly within AI and machine learning, vectors are used to represent data points in a multi-dimensional space, allowing for calculations of similarity, distance, and direction between data points.

Study this in the interactive course See the whole Backend roadmap

Free resources to learn Vectors

ArticleWhat is vector embedding?
ArticleA Gentle Introduction to Vectors for Machine Learning
ArticleVector Databases
VideoAI Foundations - What are Vectors?

Vectors: common questions

Can I learn Vectors in Hindi?

This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Vectors in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.

Is this Vectors tutorial for beginners?

It is lesson 64 of 155 in the free Backend roadmap, in stage 10, Learn the Basics. If you are new to Backend, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.