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 15:36Z

Fe₂O₃ + 3CO → 2Fe + 3CO₂

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

168K

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

446K

det| 12 4 ; 1 13 | = 152

8ψ² + 7ψ + 0 = 0

144K

∫₀^∞ e^(-t²) dt = √π / 2

371K

ΔS ≥ 0

N₂ + 3H₂ ⇌ 2NH₃

259K

1n² + 7n + 3 = 0

86K

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

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

224K

∇ × E = −∂B/∂t

234K

1x² + 9x + 5 = 0

iħ ∂ψ/∂t = Ĥψ

218K

det| 9 6 ; 7 10 | = 48

F = ma