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 00:27Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

CH₄ + 2O₂ → CO₂ + 2H₂O

446K

3x² + 3x + 6 = 0

∫₀^∞ e^(-ω²) dω = √π / 2

144K

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

371K

∇²t = 0

∑_{k=1}^{n} k = n(n+1)/2

259K

det| 7 4 ; 4 8 | = 40

86K

7z² + 2z + 0 = 0

det| 7 9 ; 1 8 | = 47

224K

7γ² + 8γ + 3 = 0

234K

det| 4 2 ; 5 5 | = 10

E = mc²

218K

∑_{k=1}^{n} k = n(n+1)/2

354K

N₂ + 3H₂ ⇌ 2NH₃

70K