# Documentation

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# asecd

Inverse secant in degrees

## Description

example

````Y = asecd(X)` returns the inverse secant (sec-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 [-Inf,1] and [1,Inf], `asecd` returns values in the range [0, 180]. For values of `X` outside this range, `asecd` returns complex values.```

## Examples

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### Inverse Secant of Vector

```x = [10 1 Inf]; y = asecd(x) ```
```y = 84.2608 0 90.0000```

The `asecd` operation is element-wise when you pass a vector, matrix, or N-D array.

### Inverse Secant of Complex Value

```asecd(1+i) ```
```ans = 64.0864 +30.4033i```

## Input Arguments

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### `X` — Secant of anglescalar value | vector | matrix | N-D array

Secant of angle, specified as a real-valued or complex-valued scalar, vector, matrix, or N-D array. The `asecd` operation is element-wise when `X` is non-scalar.

Data Types: `single` | `double`
Complex Number Support: Yes

## Output Arguments

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### `Y` — Angle in degreesscalar value | vector | matrix | N-D array

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