inverse tangent vs arctangent

inverse tangent and arctangent both are nouns.

Word	Noun	Adjective	Verb	Adverb
inverse tangent	Yes	No	No	No
arctangent	Yes	No	No	No

As nouns, inverse tangent and arctangent are synonyms defined as:

inverse tangent and arctangent: the inverse function of the tangent; the angle that has a tangent equal to a given number

Other synonyms of inverse tangent include arc tangent, arctan.

inverse tangent (noun)	arctangent (noun)
the inverse function of the tangent; the angle that has a tangent equal to a given number	the inverse function of the tangent; the angle that has a tangent equal to a given number