Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:20Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
46K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
2H₂ + O₂ → 2H₂O
CH₄ + 2O₂ → CO₂ + 2H₂O
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 8 8 ; 2 9 | = 56
177K
iħ ∂ψ/∂t = Ĥψ
det| 10 9 ; 7 11 | = 47
358K
det| 12 7 ; 5 13 | = 121
121K
CaCO₃ → CaO + CO₂
det| 9 8 ; 1 10 | = 82
AgNO₃ + NaCl → AgCl↓ + NaNO₃
11K
∑_{k=1}^{n} k = n(n+1)/2
387K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
144K
∫₀^∞ e^(-r²) dr = √π / 2
67K
\oint_C \vec{F}\cdot d\vec{r} = 0
276K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
256K