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 00:54Z

∑_{k=1}^{n} k = n(n+1)/2

det| 3 6 ; 0 4 | = 12

168K

N₂ + 3H₂ ⇌ 2NH₃

446K

3x² + 3x + 6 = 0

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

144K

d/dx [x^9] = 9x^8

371K

∇²t = 0

det| 7 4 ; 4 8 | = 40

259K

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

86K

7z² + 2z + 0 = 0

e^{i\pi} + 1 = 0

224K

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

234K

det| 4 2 ; 5 5 | = 10

∑_{k=1}^{n} k = n(n+1)/2

218K

e^{i\pi} + 1 = 0

354K

2H₂ + O₂ → 2H₂O

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

70K

det| 2 7 ; 7 3 | = -43

402K

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