Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:06Z
4y² + 8y + 1 = 0
\frac{3}{7} \sum_{i=1}^{n} i^{2}
468K
2H₂ + O₂ → 2H₂O
det| 4 7 ; 6 5 | = -22
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
339K
iħ ∂ψ/∂t = Ĥψ
det| 4 7 ; 0 5 | = 20
121K
CaCO₃ → CaO + CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
399K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
det| 9 8 ; 1 10 | = 82
∫₀^∞ e^(-θ²) dθ = √π / 2
11K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
387K
det| 2 3 ; 7 3 | = -15
144K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
97K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
338K
CH₄ + 2O₂ → CO₂ + 2H₂O
276K
∫₀^∞ e^(-x²) dx = √π / 2
256K