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by Ciro Santilli (@cirosantilli, 37)

Updates / Understanding the state of 3x3 matrix multiplication

 Home Ciro Santilli Updates
 0 By others on same topic  0 Discussions  Updated 2025-05-23  +Created 2025-05-21  See my version
After yet another awesome announcement by DeepMind that it had improved theoretical 4x4 matrix multiplication reducing the number of scalar multiplications with its AlphaEvolve system, I decided to have a look at the smallest open size 3x3 to understand what was going on in there.
I've dumped what I gathered at:
  • math.stackexchange.com/a/5065930/53203
  • www.reddit.com/r/math/comments/1komgnr/til_you_can_multiply_two_3x3_matrices_with_only/
Announced at:
  • mastodon.social/@cirosantilli/114523670306611862
  • x.com/cirosantilli/status/1923749179458773429

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