Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:52Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
46K
2H₂ + O₂ → 2H₂O
det| 7 4 ; 4 8 | = 40
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 7 7 ; 4 8 | = 28
339K
det| 5 6 ; 2 6 | = 18
358K
∑_{k=1}^{n} k = n(n+1)/2
121K
∫₀^∞ e^(-x²) dx = √π / 2
399K