The OpenAI algorithm for the FFT is less a breakthrough and more a malicious exploit.

After a previous solution angered mathematicians, the company characterized the new release as being more responsive to concerns about A.I. disrupting research.

We prove that ζ(5) is irrational. The proof constructs integer polynomials Qₙ of degree 37n with 0 < Qₙ(ζ(5)) < exp(−139n²/5) for all sufficiently large n. These polynomials are rationally normalized ...

A crossword puzzle game using regular expressions. Earn achievements completing puzzle challenges. Easy tutorials for people new to regular expressions.