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

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

168K

∇²z = 0

446K

3x² + 3x + 6 = 0

e^{i\pi} + 1 = 0

144K

∫₀^∞ e^(-θ²) dθ = √π / 2

371K

∇²t = 0

9ψ² + 7ψ + 3 = 0

259K

F = G m₁m₂ / r²

86K

7z² + 2z + 0 = 0

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

224K

12y² + 5y + 7 = 0

234K

det| 4 2 ; 5 5 | = 10

det| 7 4 ; 4 8 | = 40

218K

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

354K

∇ × E = −∂B/∂t

70K

∇²r = 0

402K