Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:09Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
46K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
177K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
det| 12 7 ; 7 13 | = 107
399K
det| 11 2 ; 2 12 | = 128
316K
det| 9 8 ; 1 10 | = 82
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
387K
det| 8 8 ; 0 9 | = 72
144K
CH₄ + 2O₂ → CO₂ + 2H₂O
67K
det| 7 8 ; 0 8 | = 56
97K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
338K
det| 1 1 ; 6 2 | = -4
276K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
346K
det| 4 4 ; 2 5 | = 12
256K