arc tangent vs inverse tangent

arc tangent and inverse tangent both are nouns.

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

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

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

Other synonyms of arc tangent include arctan, arctangent.

arc tangent (noun)	inverse tangent (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