arc·sine
| \ (ˌ)ärk-ˈsīn
\
\
variants:
or less commonly arc sine
plural arcsines also arc sines
Definition of arcsine
: the inverse function of the sine
if y is the sine of θ, then θ is the arcsine of y
—abbreviation arcsin
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“Arcsine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arcsine. Accessed 24 Jun. 2021.
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Time Traveler for arcsine
The first known use of arcsine was circa 1889
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