Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:10Z
4y² + 8y + 1 = 0
\frac{9}{3} \sum_{i=1}^{n} i^{2}
46K
2H₂ + O₂ → 2H₂O
AgNO₃ + NaCl → AgCl↓ + NaNO₃
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 2 7 ; 2 3 | = -8
339K
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
177K
∫₀^∞ e^(-θ²) dθ = √π / 2
358K
d/dn [n^12] = 12n^11
121K
∑_{k=1}^{n} k = n(n+1)/2
316K
\oint_C \vec{F}\cdot d\vec{r} = 0
11K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
67K