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 04:17Z

12r² + 6r + 1 = 0

\lim_{x\to 0} \frac{\sin x}{x} = 1

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

144K

∫₀^∞ e^(-ψ²) dψ = √π / 2

371K

4t² + 9t + 6 = 0

E = mc²

259K

CH₄ + 2O₂ → CO₂ + 2H₂O

86K

∇²ψ = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

224K

d/dt [t^3] = 3t^2

234K

F = ma

det| 9 4 ; 1 10 | = 86

218K

det| 10 7 ; 3 11 | = 89

354K