# acosd

acosd(x)

Compute the inverse cosine of `x`, where the output is in degrees

## Examples

``````julia> acosd(0.5)
60.00000000000001

julia> acosd(1)
0.0

julia> acosd(-1)
180.0

julia> acosd(sqrt(3)/2)
30.000000000000004``````

The `acosd` function in Julia computes the inverse cosine of a given value `x`, where the output is in degrees. Here are some common examples of its use:

1. Compute the inverse cosine of a value:

``````julia> acosd(0.5)
60.00000000000001``````

In this example, the `acosd` function returns the inverse cosine of 0.5, which is approximately 60 degrees.

2. Handle edge cases:

``````julia> acosd(1)
0.0

julia> acosd(-1)
180.0``````

The `acosd` function correctly handles special cases where the input value is 1 or -1, returning 0 degrees and 180 degrees, respectively.

3. Compute the inverse cosine of a trigonometric function:
``````julia> acosd(sqrt(3)/2)
30.000000000000004``````

This example demonstrates the usage of `acosd` to compute the inverse cosine of `sqrt(3)/2`, which corresponds to approximately 30 degrees.

Please note that due to floating-point precision, the actual output values may have slight variations from the exact expected values.