inverse secant vs arc secant

inverse secant and arc secant both are nouns.

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

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

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

Other synonyms of inverse secant include arcsec, arcsecant.

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