# Definition:Coordinate/Also denoted as

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## Coordinates: Also denoted as

It is usual to use the subscript technique to denote the coordinates where $n$ is large or unspecified:

- $\tuple {x_1, x_2, \ldots, x_n}$

However, note that some texts (often in the fields of physics and mechanics) prefer to use superscripts:

- $\tuple {x^1, x^2, \ldots, x^n}$

While this notation is documented here, its use is not endorsed by $\mathsf{Pr} \infty \mathsf{fWiki}$ because:

- there exists the all too likely subsequent confusion with notation for powers
- one of the philosophical tenets of $\mathsf{Pr} \infty \mathsf{fWiki}$ is to present a system of notation that is as completely consistent as possible.

## Sources

- 1965: Claude Berge and A. Ghouila-Houri:
*Programming, Games and Transportation Networks*... (previous) ... (next): $1$. Preliminary ideas; sets, vector spaces: $1.1$. Sets