> Aztec.nr API reference, v6.0.0 (mainnet and testnet). Index: https://docs.aztec.network/aztec-nr-api/v6.0.0/llms.txt

# Function sqrt

Module: `noir_aztec::protocol::utils::field`

```rust
pub fn sqrt(x: Field) -> Option<Field>
```

Returns Option::some(sqrt) if there is a square root, and Option::none() if there isn't.