Σ index Eq pack 19 Rxn set 20 Rxn set 26 Σ#24 Σ#12 Ledger /21 Eq pack 13 Ledger /3 Eq pack 1 Batch 16 Σ#18 Σ#6 Ledger /15 Batch 4

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 00:50Z

∑_{k=1}^{n} k = n(n+1)/2

N₂ + 3H₂ ⇌ 2NH₃

168K

CaCO₃ → CaO + CO₂

446K

3x² + 3x + 6 = 0

\binom{n}{k} = \frac{n!}{k!(n-k)!}

144K

iħ ∂ψ/∂t = Ĥψ

371K

∇²t = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

259K

PV = nRT

86K

∫₀^∞ e^(-ψ²) dψ = √π / 2

224K

\lim_{β\to 0} \frac{\sin β}{β} = 1

234K

∑_{k=1}^{n} k = n(n+1)/2

218K

8ψ² + 7ψ + 0 = 0

354K

det| 7 2 ; 7 8 | = 42

70K

det| 7 7 ; 4 8 | = 28

402K