Interpoloidaan

Interpoloidaan is a Finnish verb form that expresses that something is interpolated. It is the present passive form of the verb interpoloida, which in turn is borrowed from the English word interpolate. In Finnish, interpoloidaan is used primarily in scientific, mathematical, and data-processing contexts to indicate that intermediate values have been estimated from known data points.

In practice, interpoloidaan describes the act of estimating values within a data set, rather than extrapolating beyond the known range. It is commonly used in statistics, numerical analysis, signal processing, and computer graphics. The method of interpolation can vary, with lineaarinen interpolaatio (linear interpolation), polynomiaalinen interpolaatio (polynomial interpolation), and spline-interpolatio being typical approaches. The form is passive, so the linguistic subject performing the interpolation is often not specified.

Common usage examples include phrases such as puuttuvat arvot interpoloidaan lineaarisella interpolaatiolla (the missing values are interpolated using linear interpolation) or datapisteet interpoloidaan tasaisin välein (the data points are interpolated at regular intervals). The noun related to the concept is interpolaatio, meaning interpolation, while related terms include ekstrapolaatio (extrapolation) and different interpolation schemes.

Etymology and status: interpoloidaan is a native Finnish morphological adaptation of the English loanword interpolate. It demonstrates how Finnish uses passive voice to describe technical operations without naming an agent. The term is widely understood among Finnish speakers working in mathematics, statistics, engineering, and data science.