What is another word for inverse function?
Pronunciation: [ɪnvˈɜːs fˈʌŋkʃən] (IPA) 
An inverse function is a mathematical operation that reverses the effect of another operation. There are several synonyms for inverse function, including reciprocal function, anti-function, and invertible function. The reciprocal function, as the name implies, is when two numbers are flipped or swapped to produce a new function. An anti-function is the inverse operation of a given function that eliminates the original operation's effect, such as taking the square root of a squared number to get the original value. Lastly, an invertible function is a function that has a unique inverse or anti-function that allows us to reverse the operation and get back the original value. All of these synonyms point towards the operation of inverting a function to reverse its effect.
