koordinaatistolla

Koordinaatistolla is the adessive singular form of koordinaatisto, the Finnish term for a coordinate system. It is used to indicate the coordinate system as the reference frame in which positions, measurements and transformations are described and carried out. In mathematics, physics, geography, and computer graphics, the coordinate system provides the axes, origin, and units that allow points to be represented by coordinates such as (x, y) or (x, y, z). The phrase is generic; the specific type of system (Cartesian, polar, cylindrical, spherical, geographic) is usually specified by accompanying words or context.

In Finnish texts, koordinaatistolla may express instrumental or locational meaning: calculations performed with respect to the coordinate system, or a point located on the coordinate grid. The opposed form koordinaatistossa denotes being inside or within the system, for example on or inside the plane defined by the coordinates.

Etymology: formed from koordinaatisto (coordinate system) plus the adessive suffix -lla, used to mark location or instrument. See also koordinaatisto, Cartesian coordinates, polar coordinates, and geographic information systems for related concepts.