the separate Arb library)
* Polynomials (univariate and multivariate), power series, and matrices building on top of ring arithmetics.

Based on core:
* Primality testing (APRCL, Miller-Rabin, BPSW, etc.)
* Integer factorization (trial factor, quadratic sieve, Pollard's rho, Lenstra ECM)
* Multivariate polynomial GCD and factorisation
* FFTs
* Multimodular reconstruction
* Special functions
* Exact and approximate linear algebra