# Math.trunc

## Function

Truncate decimals. Returns the number minus the decimal part.

## Syntax

```bt
Math.trunc(value)
```

## Parameters

| Parameters | Type | Required | Default value | Description |
| ------ | ------ | ------ | ------ | ------ |
| value | Number | Yes | None | The number to participate in truncation. |

## Return value

| Type | Description |
| ------ | ------ |
| Int/Float | Returns the number minus the decimal part. An Int is returned for integer results, and a Float for non-integer or non-finite results. |

## Example

```bt
result = Math.trunc(1.8)

// Output: 1
print result
```

## Notes

- Only decimals are truncated, no rounding is done.