Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:11Z
4y² + 8y + 1 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
46K
2H₂ + O₂ → 2H₂O
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
339K
∑_{k=1}^{n} k = n(n+1)/2
177K
iħ ∂ψ/∂t = Ĥψ
CaCO₃ → CaO + CO₂
det| 4 1 ; 2 5 | = 18
399K
det| 8 8 ; 0 9 | = 72
11K
det| 1 4 ; 3 2 | = -10
144K
det| 11 2 ; 2 12 | = 128
67K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
97K
det| 2 3 ; 6 3 | = -12
276K
\frac{12}{4} \sum_{i=1}^{n} i^{2}
346K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
256K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
348K