Title Atvirkštinės funkcijos
Translation of Title Inverse functions.
Authors Kudžma, Ričardas Juozas
DOI 10.15388/LMR.2025.44459
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Is Part of Lietuvos matematikos rinkinys. Lietuvos matematikų draugijos darbai. Ser. B.. Vilnius : Vilniaus universiteto leidykla. 2025, t. 66, p. 81-90.. ISSN 0132-2818. eISSN 2335-898X
Keywords [eng] function’s definition ; function’s notation ; graph of a function ; inverse function ; coordinate system
Abstract [eng] 23 years ago, R. Kudžma in the journal Alfa plius omega [7] argued that the TEV textbook [14] presents the inverse function and its graph incorrectly. The head of the textbook's author group, V. Stakėnas [15], replied that this was not incorrect, but a traditional approach. The discussion did not develop. The separation of the function f  : x  ↦ f(x), o y = f(x) and the equation y = f(x) notations proposed in this article may help resolve the seemingly irreconcilable views on the inverse function and its graph. The idea is also developed that the graph of the function f in the original coordinate system Oxy is also the graph of the inverse function in Oyx coordinate system.
Published Vilnius : Vilniaus universiteto leidykla
Type Journal article
Language Lithuanian
Publication date 2025
CC license CC license description