Extended Data Fig. 1: Algorithm for multiplying 4 × 4 matrices in modular arithmetic (\({{\mathbb{Z}}}_{2}\)) with 47 multiplications.
From: Discovering faster matrix multiplication algorithms with reinforcement learning
![Extended Data Fig. 1](https://cdn.statically.io/img/media.springernature.com/full/springer-static/esm/art%3A10.1038%2Fs41586-022-05172-4/MediaObjects/41586_2022_5172_Fig6_ESM.jpg)
This outperforms the two-level Strassen’s algorithm, which involves 72 = 49 multiplications.