inverse function

noun

: a function that is derived from a given function by interchanging the two variables
y = ∛x is the inverse function of y = x3
compare logarithmic function

Word History

First Known Use

1813, in the meaning defined above

Time Traveler
The first known use of inverse function was in 1813

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Cite this Entry

“Inverse function.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/inverse%20function. Accessed 3 Jul. 2026.

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