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 20:38Z

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

CH₄ + 2O₂ → CO₂ + 2H₂O

46K

det| 9 4 ; 1 10 | = 86

468K

CaCO₃ → CaO + CO₂

e^{i\pi} + 1 = 0

289K

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

278K

e^{i\pi} + 1 = 0

7r² + 8r + 5 = 0

339K

∂z/∂φ = 7z

177K

∂x/∂r = 4x

CaCO₃ → CaO + CO₂

358K

∫₀^∞ e^(-n²) dn = √π / 2

121K

d/dx [x^3] = 3x^2

399K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

316K

∑_{k=1}^{n} k = n(n+1)/2

11K