# The origin

1. Mar 15, 2015

### LagrangeEuler

Almost always in xy plane we take that origin is $(0,0)$. Is it possible to take that origin is in the point $(1,1)$, or some other point?

2. Mar 15, 2015

### Staff: Mentor

The point (0,0) is called origin. That is just a definition. It does not make sense to give another point the same name.

3. Mar 15, 2015

### LagrangeEuler

If I want to use some translation in x-axis I need more then one coordinate system, for example. So origin of first system for instance is $(0,0)$ and for second is $(2,0)$?

4. Mar 15, 2015

### DrewD

The origin of the second system is at $(2,0)$ in the coordinates of the first system, but using the coordinates of the second system the origin, by definition, is at $(0,0)$. As mfb said, it doesn't make sense to use the term to apply to some other point in the coordinate system.