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 00:02Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

N₂ + 3H₂ ⇌ 2NH₃

446K

3x² + 3x + 6 = 0

det| 3 7 ; 2 4 | = -2

144K

6x² + 6x + 1 = 0

371K

∇²t = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

259K

∫₀^∞ e^(-θ²) dθ = √π / 2

86K

7z² + 2z + 0 = 0

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

224K

6t² + 6t + 4 = 0

234K

det| 7 4 ; 4 8 | = 40

218K

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

354K

∫₀^∞ e^(-ψ²) dψ = √π / 2

70K

∑_{k=1}^{n} k = n(n+1)/2

402K

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