A computational tool designed to determine the measures of central angles and inscribed angles within a circle, given sufficient parameters such as arc length, radius, or the measure of a related angle. For example, if the measure of an inscribed angle is known, the calculation determines the measure of the central angle subtending the same arc, or vice versa, utilizing the theorem that the central angle is twice the measure of any inscribed angle subtending the same arc.
The utility of such a tool stems from its ability to expedite geometric problem-solving and verify manual calculations, minimizing errors in fields such as surveying, engineering, and architecture where precise angular measurements are critical. Historically, the determination of these angles required manual protraction and measurement, processes prone to inaccuracies and time-consuming. Modern computational methods provide a more efficient and precise alternative.