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 00:21Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

∇ × E = −∂B/∂t

446K

3x² + 3x + 6 = 0

∂ψ/∂β = 3ψ

144K

10t² + 9t + 5 = 0

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

CH₄ + 2O₂ → CO₂ + 2H₂O

86K

7z² + 2z + 0 = 0

N₂ + 3H₂ ⇌ 2NH₃

224K

det| 7 8 ; 4 8 | = 24

234K

det| 4 2 ; 5 5 | = 10

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

218K

6t² + 6t + 4 = 0

354K

2H₂ + O₂ → 2H₂O

det| 7 9 ; 1 8 | = 47

70K

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

402K

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