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 00:15Z

∑_{k=1}^{n} k = n(n+1)/2

iħ ∂ψ/∂t = Ĥψ

168K

N₂ + 3H₂ ⇌ 2NH₃

446K

3x² + 3x + 6 = 0

det| 12 2 ; 2 13 | = 152

144K

det| 11 9 ; 0 12 | = 132

371K

∇²t = 0

det| 7 4 ; 4 8 | = 40

259K

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

86K

7z² + 2z + 0 = 0

det| 5 6 ; 2 6 | = 18

224K

∇²t = 0

234K

det| 4 2 ; 5 5 | = 10

∑_{k=1}^{n} k = n(n+1)/2

218K

det| 5 9 ; 7 6 | = -33

354K

2H₂ + O₂ → 2H₂O

Fe₂O₃ + 3CO → 2Fe + 3CO₂

70K

∂y/∂γ = 8y

402K

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