Source: cirosantilli/multiplication-of-matrices-of-specific-size
= Multiplication of matrices of specific size
<DeepMind> likes coming up with new improved algorithms for these more specific cases, e.g. it was announced in 2025 that <AlphaEvolve> found a novel 4x4 <complex> valued algorithm that uses 48 multiplications.
Bibliography:
* https://fmm.univ-lille.fr/ attempts to keep an up-to-date list for various sizes