Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:05Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
289K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 8 6 ; 1 9 | = 66
339K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
177K
iħ ∂ψ/∂t = Ĥψ
\lim_{α\to 0} \frac{\sin α}{α} = 1
121K
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
399K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
387K
det| 7 4 ; 4 8 | = 40
67K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
346K
det| 9 5 ; 2 10 | = 80
256K