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 21:39Z

2H₂ + O₂ → 2H₂O

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

168K

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

446K

3θ² + 4θ + 0 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

144K

8ψ² + 7ψ + 0 = 0

371K

∇²t = 0

det| 10 7 ; 3 11 | = 89

259K

\frac{8}{6} \sum_{i=1}^{n} i^{2}

86K

det| 11 7 ; 4 12 | = 104

det| 9 6 ; 7 10 | = 48

224K

∇ × E = −∂B/∂t

234K

4t² + 2t + 7 = 0

9α² + 7α + 5 = 0

218K

e^{i\pi} + 1 = 0

∑_{k=1}^{n} k = n(n+1)/2