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 06:05Z

det| 3 9 ; 6 4 | = -42

∑_{k=1}^{n} k = n(n+1)/2

168K

N₂ + 3H₂ ⇌ 2NH₃

446K

∑_{k=1}^{n} k = n(n+1)/2

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

144K

10t² + 9t + 5 = 0

371K

2z² + 2z + 5 = 0

iħ ∂ψ/∂t = Ĥψ

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

iħ ∂ψ/∂t = Ĥψ

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

224K

8ψ² + 7ψ + 0 = 0

234K

∫₀^∞ e^(-α²) dα = √π / 2

218K

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

354K