# Documentation

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# asind

Inverse sine in degrees

## Description

example

Y = asind(X) returns the inverse sine (sin-1) of the elements of X in degrees. The function's domain and range include complex values. For real elements of X in the domain [-1,1], asind returns values in the range [-90,90]. For values of X outside this range, asind returns complex values.

## Examples

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Show that the inverse sine of 1 is exactly 90°.

asind(1)
ans =

90

Show that the inverse sine, followed by sine, returns the original values of X.

sind(asind([2 3]))
ans =

2.0000    3.0000

Plot the inverse sine function over the domain .

x = -1:.01:1;
plot(x,asind(x))
grid on

## Input Arguments

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Sine of angle, specified as a real-valued or complex-valued scalar, vector, matrix, or N-D array. The asind operation is element-wise when X is nonscalar.

Data Types: single | double
Complex Number Support: Yes

## Output Arguments

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Angle in degrees, returned as a real-valued or complex-valued scalar, vector, matrix, or N-D array of the same size as X.

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### Tall Array Support

This function fully supports tall arrays. For more information, see Tall Arrays.