Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:05Z
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
\binom{n}{k} = \frac{n!}{k!(n-k)!}
289K
det| 10 4 ; 2 11 | = 102
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
177K
iħ ∂ψ/∂t = Ĥψ
\frac{12}{4} \sum_{i=1}^{n} i^{2}
358K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
121K
CaCO₃ → CaO + CO₂
det| 3 9 ; 1 4 | = 3
399K
det| 9 8 ; 1 10 | = 82
∑_{k=1}^{n} k = n(n+1)/2
11K
∂ω/∂t = 2ω
d/dn [n^12] = 12n^11
144K
\oint_C \vec{F}\cdot d\vec{r} = 0
338K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
256K