arc sine


noun Trigonometry.

the angle, measured in radians, that has a sine equal to a given number. Abbreviation: arc sin, arcsin; Symbol: sin−1
Also called inverse sine.

Origin of arc sine

First recorded in 1905–10

British Dictionary definitions for arcsin

arcsin
/ (ˈɑːkˌsaɪn) maths /

abbreviation for

arcsine: the function the value of which for a given argument between –1 and 1 is the angle in radians (between –π/2 and π/2), the sine of which is that argument: the inverse of the sine function

Scientific definitions for arcsin

arc sine

The inverse of the sine function.