# Arccosine Node

## Description

Returns the arccosine of each component of the input **In** as a vector of the same dimension and equal length. Each component should be within the range of -1 to 1.

## Ports

| Name        | Direction           | Type  | Description |
|:------------ |:-------------|:-----|:---|
| In      | Input | Dynamic Vector | Input value |
| Out | Output      |    Dynamic Vector | The arccosine of the input value, in radians |

## Generated Code Example

The following example code represents one possible outcome of this node.

```
void Unity_Arccosine_float4(float4 In, out float4 Out)
{
    Out = acos(In);
}
```

## Additional resources

[!include[nodes-example-samples](./snippets/nodes-example-samples.md)]