# Math.cos

## Function

cosine. Returns the cosine of value.

## Syntax

```bt
Math.cos(value)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| value | Number | Yes | None | The value in radians. |

## Return value

| Type | Description |
| ------ | ------ |
| Int/Float | Returns the cosine of value. An Int is returned for integer results, and a Float for non-integer or non-finite results. |

## Example

```bt
result = Math.cos(0)

// Output: 1
print result
```

## Notes

- Trigonometric function parameters use radians.