John Carlos Baez on Nostr: npub19zqyh…w0dxz - thanks! Yes, I've always found the umbral calculus a bit ...
npub19zqyhgmz3fhz6nr6h6qhywx7r5mfjgk3ny4eul8t7xy7hyqg4grqvw0dxz (npub19zq…0dxz) - thanks! Yes, I've always found the umbral calculus a bit mysterious - perhaps because it's 'formal' - and many other people do too, even though Gian-Carlo Rota and others have tried to demystify it.