arcsin
- noun
- /ˈɑrkˌsɪn/
- Specialized
- All cover variables were transformed with the arcsin square root transformation, and plant species richness with the square root transformation to meet the distributional assumption.
- arcsin transformation
Examples
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In trigonometry, the arcsin of 0.5 is 30 degrees, which means that the sine of 30 degrees equals 0.5.
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The confidence intervals assume a binomial distribution for the number of words correct and use an arcsin transformation to construct a confidence interval.
Academic text (2010) -
Arcsin transformations were performed on the trip proportion values before statistical analysis (Winer, 1971).
Academic text (1992) -
Calculating the arcsin helps find the angle when the sine value is known, such as arcsin(1) being equal to 90 degrees.
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To solve for the angle in a right triangle, use the arcsin function to determine the angle whose sine equals the opposite side divided by the hypotenuse.
Synonyms
A function that gives the angle for a given sine value
An angle whose sine is a given number
A way to find the angle whose sine equals a given number
Surface Forms
Morphology
Etymology
Arcsin is made of two parts, arc and sin. The arc part means 'curved part of a circle', like an 'arch', and sin comes from sine, the math function that gives a value from a triangle. So arcsin is the angle on the circle that has that 'sine' value, in other words the angle whose sine is a given number.