Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:08Z
4y² + 8y + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
2H₂ + O₂ → 2H₂O
∫₀^∞ e^(-x²) dx = √π / 2
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
339K
\oint_C \vec{F}\cdot d\vec{r} = 0
177K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
Fe₂O₃ + 3CO → 2Fe + 3CO₂
11K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
387K
det| 4 7 ; 6 5 | = -22
144K
det| 1 1 ; 6 2 | = -4
67K
det| 1 7 ; 2 2 | = -12
97K
∑_{k=1}^{n} k = n(n+1)/2
338K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
346K