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 01:30Z

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

\frac{12}{6} \sum_{i=1}^{n} i^{2}

46K

∑_{k=1}^{n} k = n(n+1)/2

468K

ω = 2πf

∫₀^∞ e^(-r²) dr = √π / 2

289K

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

278K

det| 1 7 ; 1 2 | = -5

∫₀^∞ e^(-t²) dt = √π / 2

339K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

177K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

7y² + 9y + 1 = 0

358K

∂α/∂r = 8α

121K

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

∑_{k=1}^{n} k = n(n+1)/2

399K

det| 9 4 ; 1 10 | = 86

316K

∇ × E = −∂B/∂t

11K

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

387K

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