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 00:25Z

∑_{k=1}^{n} k = n(n+1)/2

det| 10 2 ; 3 11 | = 104

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

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

144K

1θ² + 2θ + 6 = 0

371K

∇²t = 0

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

259K

det| 7 9 ; 1 8 | = 47

86K

7z² + 2z + 0 = 0

\oint_C \vec{F}\cdot d\vec{r} = 0

224K

N₂ + 3H₂ ⇌ 2NH₃

234K

det| 7 4 ; 4 8 | = 40

218K

2γ² + 5γ + 2 = 0

354K

7y² + 9y + 1 = 0

70K