arc cosine

noun
\ (ˌ)är(k)-ˈkō-ˌsīn How to pronounce arc cosine (audio) \
variants: or arccosine
plural arc cosines or arccosines

Definition of arc cosine

: the inverse function of the cosine if y is the cosine of θ, then θ is the arccosine of y abbreviation arccos

First Known Use of arc cosine

circa 1884, in the meaning defined above

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Time Traveler for arc cosine

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The first known use of arc cosine was circa 1884

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Dictionary Entries Near arc cosine

arc cosecant

arc cosine

arccot

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Statistics for arc cosine

Cite this Entry

“Arc cosine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arc%20cosine. Accessed 18 Sep. 2021.

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