`asin`

Inverse sine of each element, with the result in radians.

Category: Mathematics > Elementary Math

Syntax

Y = asin(X)

Returns the inverse sine of each element of X.

Description

For real input in [-1, 1] the result is a real angle in [-pi/2, pi/2] and sin(asin(X)) returns X. For real input outside that interval the result is complex, for example asin(2) is 1.5708 - 1.3170i.

Input arguments

X: Numeric array of any size. Complex values are allowed.

Output arguments

Y: Array of the same size as X, in radians.

Example

Inverse sine

asin([0 0.5 1 -1])
asin(2)

Output

ans = 1×4

         0    0.5236    1.5708   -1.5708
ans = 1.5708 - 1.3170i

See also

sin asind asinh acos