Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:32Z
4y² + 8y + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
2H₂ + O₂ → 2H₂O
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\frac{8}{6} \sum_{i=1}^{n} i^{2}
177K
iħ ∂ψ/∂t = Ĥψ
\oint_C \vec{F}\cdot d\vec{r} = 0
358K
det| 9 4 ; 1 10 | = 86
121K
CaCO₃ → CaO + CO₂
det| 6 6 ; 5 7 | = 12
399K
det| 9 8 ; 1 10 | = 82
det| 5 2 ; 3 6 | = 24
11K
det| 12 8 ; 7 13 | = 100
∂ω/∂t = 2ω
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O