Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:32Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 7 4 ; 4 8 | = 40
177K
det| 11 4 ; 5 12 | = 112
121K
det| 4 8 ; 3 5 | = -4
399K