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Историческую версию Interpolation можно получить на Android
Интерполяция значений таблиц быстро
Interpolation is a very useful application for those who work in engineering or for those who work with tables of standards and need, as it often happens, to interpolate between two values to find the lookup value. The application is designed to interpolate the values of the tables quickly. An interface, accessible from the application menu, is also available to do double interpolations even more quickly.