# Creation

In the current implementation only cusp forms are supported.

## `BianchiCuspForms(F, N): FldNum, RngOrdIdl -> ModFrmBianchi`

```magma
VorData: Rec                    Default: 
```

This creates the cuspidal subspace of the space of Bianchi modular forms over the field $F$ (an imaginary quadratic field) on $\Gamma_0(N)$ with weight $2$. The level $N$ should be an ideal in the maximal order of $F$.

The optional argument `VorData` may be set equal to `VoronoiData(M)` where `M` is a previously computed space of forms over the same field. This avoids repeating the time-consuming precomputations that depend only on the field.