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 00:04Z

∑_{k=1}^{n} k = n(n+1)/2

\frac{6}{7} \sum_{i=1}^{n} i^{2}

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

∫₀^∞ e^(-x²) dx = √π / 2

144K

CH₄ + 2O₂ → CO₂ + 2H₂O

371K

∇²t = 0

det| 2 6 ; 0 3 | = 6

259K

N₂ + 3H₂ ⇌ 2NH₃

86K

7z² + 2z + 0 = 0

CaCO₃ → CaO + CO₂

224K

F = G m₁m₂ / r²

234K

det| 4 2 ; 5 5 | = 10

∑_{k=1}^{n} k = n(n+1)/2

218K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

354K

2H₂ + O₂ → 2H₂O