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 07:40Z

∑_{k=1}^{n} k = n(n+1)/2

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

46K

6r² + 3r + 1 = 0

468K

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

8ψ² + 7ψ + 0 = 0

289K

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

278K

∂x/∂θ = 8x

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

339K

N₂ + 3H₂ ⇌ 2NH₃

177K

3φ² + 4φ + 2 = 0

∇ × E = −∂B/∂t

358K

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

121K

5ω² + 6ω + 0 = 0

det| 5 2 ; 1 6 | = 28

∫₀^∞ e^(-θ²) dθ = √π / 2

∇²θ = 0