Math Definitions - Letter O


Definition of Origin

Definition of Origin

The origin is the starting point from which other numbers or points are measured.

The origin in a number line is the number \(0\). The origin in the \(xy\)-plane is the point \((0,0)\).

To write the origin in higher dimensional spaces, add an extra zero. So the origin in \(3\)-dimensional space is the point \((0,0,0)\).

We often use the letter \(O\) to denote the origin.


The aim of this dictionary is to provide definitions to common mathematical terms. Students learn a new math skill every week at school, sometimes just before they start a new skill, if they want to look at what a specific term means, this is where this dictionary will become handy and a go-to guide for a student.


Year 1 to Year 12 students

Learning Objectives

Learn common math terms starting with letter O

Author: Subject Coach
Added on: 6th Feb 2018

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