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 00:56Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

PV = nRT

446K

3x² + 3x + 6 = 0

CH₄ + 2O₂ → CO₂ + 2H₂O

144K

det| 3 7 ; 2 4 | = -2

371K

∇²t = 0

d/dφ [φ^1] = 1φ^0

259K

d/dt [t^3] = 3t^2

86K

det| 9 4 ; 1 10 | = 86

224K

F = G m₁m₂ / r²

234K

∑_{k=1}^{n} k = n(n+1)/2

218K

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

354K

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

70K