rajaväli

Rajaväli is an Estonian term describing the range or boundary within which something operates, is valid, or can be observed. It is formed from raj- meaning border or boundary and väli meaning field or area, and it is used across technical and everyday language to express the extent of values, effects, or measurements.

In mathematics and data handling, the more common terms for the set of possible output values are vahemik or väärtuste hulk, but rajaväli can appear in texts to denote the image of a function or the permissible values of a parameter, especially in informal or domain-specific contexts. In engineering, physics, and instrumentation, rajaväli is frequently used to specify operating ranges, such as a device’s temperature rajaväli or its input voltage rajaväli, as well as the detection or measurement range of sensors.

The concept carries a sense of feasibility and limits rather than an exact mathematical abstraction. In documentation and product descriptions, precise values are typically given in parentheses or a table, while rajaväli signals the general scope.

See also: vahemik, ulatus.