Σ index Eq pack 19 Eq pack 13 Σ#12 Batch 22 Matrix 17 Σ#24 Batch 10 Ledger /9 Rxn set 8 Eq pack 25 Σ#18 Rxn set 26 Rxn set 14 Matrix 5 Ledger /3 Matrix 23

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-19 01:16Z

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

3x² + 5x + 7 = 0

46K

∑_{k=1}^{n} k = n(n+1)/2

468K

ω = 2πf

∇ × E = −∂B/∂t

289K

4γ² + 1γ + 7 = 0

278K

det| 1 7 ; 1 2 | = -5

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

339K

det| 7 4 ; 4 8 | = 40

177K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

358K

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

121K

d/dn [n^1] = 1n^0

∑_{k=1}^{n} k = n(n+1)/2

399K

∫₀^∞ e^(-θ²) dθ = √π / 2

316K

N₂ + 3H₂ ⇌ 2NH₃

11K

ω = 2πf

387K

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