# RefBigDecimal.round

Round the current state of a RefBigDecimal.

## Signatures

```ts
export declare const round: {
    (options?: {
        scale?: number;
        mode?: BigDecimal.RoundingMode;
    }): <E, R>(ref: RefBigDecimal<E, R>) => RefSubject.Computed<BigDecimal.BigDecimal, E, R>;
    <E, R>(ref: RefBigDecimal<E, R>, options?: {
        scale?: number;
        mode?: BigDecimal.RoundingMode;
    }): RefSubject.Computed<BigDecimal.BigDecimal, E, R>;
};
```

## Why

Round the current state of a RefBigDecimal. The operation remains attached to the RefSubject's
versioned state boundary.

## Ownership and lifetime

The round view retains no independent state. An Effect read samples the source once; Fx
observation follows later pushes and its observing Scope owns subscription cleanup.