# Cartesian coordinates

The of a point in $\mathbb{R}^{3}$ for determining its in three-dimensional space are the three real numbers $x$, $y$ and $z$, which are called

• $x$-coordinate or abscissa,

• $y$-coordinate or ordinate,

• $z$-coordinate or applicate.

The last name “applicate” is rare in English, but its in continental European , as “die Applikate” in German and “aplikaat” in Estonian, are more known.

Similarly, in $\mathbb{R}^{n}$ for all  $n=1,\,2,\,3,\,\ldots$  one needs $n$ coordinates for specifying the location of a point.

Title Cartesian coordinates CartesianCoordinates 2013-03-22 14:28:59 2013-03-22 14:28:59 pahio (2872) pahio (2872) 9 pahio (2872) Definition msc 51N20 rectangular coordinates AnalyticGeometry abscissa ordinate applicate