Very nice! pic.twitter.com/2Phpjj9Z6w
— Jens Fehlau | Papa Flammy :v (@FlammableMaths) September 16, 2020
🤣🤣🤣🤣
— La_Maudite 🐧 (@La_Maudite) September 17, 2020
This is a very nice argument, which might be worth spelling out a bit for anyone who’s a bit less confident with linear algebra than @GeoffdeGuere. (1/3) https://t.co/5moSGAQqpl
— .robin. (@robinhouston) September 17, 2020
And we now have some 4×4 vampire matrices! @DiracDeltaFunk has rounded up all the 1-digit cases including this lovely one: pic.twitter.com/lljpKRQlik
— Matt Parker (@standupmaths) November 1, 2020
