Hello,

I’ve just released **weierstrass-functions** on Hackage. This library allows to evaluate some special functions:

- Weierstrass p function and its inverse
- Weierstrass sigma function
- Weierstrass zeta function
- Eisenstein series E2, E4, E6
- Dedekind eta function
- Klein j function and its inverse
- Modular lambda function
- Modular discriminant function