# Parentheses: grouping and calls

[Syntax and values](README.md)

## Behavior and details

Parentheses group an expression or delimit call arguments. Grouping changes precedence without changing a value’s type. Every zero-argument call needs (). Calls may nest inside expressions. Newlines and trailing commas are allowed inside argument lists; parentheses do not introduce a tuple type.

## Example

```pliro
# language: en
say((2 + 3) * 4)
say(length([1, 2, 3]))
```

## Related entries

[Syntax and values](README.md) · [Built-ins](../builtins/README.md) · [Programming guides](../guides/README.md)