Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:34Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
289K
det| 7 4 ; 4 8 | = 40
278K
e^{i\pi} + 1 = 0
det| 3 6 ; 0 4 | = 12
339K
∑_{k=1}^{n} k = n(n+1)/2
121K