4 ms·
If you thought that was goofy, check out "Umbral calculus" https://en.wikipedia.org/wiki/Umbral_calculus https://en.wikipedia.org/wiki/Umbral_calculus
by ajb 11mo ago
If you thought that was goofy, check out "Umbral calculus" https://en.wikipedia.org/wiki/Umbral_calculus https://en.wikipedia.org/wiki/Umbral_calculus