Σ index Ledger /3 Matrix 11 Matrix 23 Rxn set 8 Rxn set 20 Batch 16 Σ#6 Eq pack 13 Σ#24 Σ#12 Matrix 17 Ledger /9 Rxn set 26 Batch 4 Σ#18

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-18 22:16Z

∑_{k=1}^{n} k = n(n+1)/2

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

384K

∑_{k=1}^{n} k = n(n+1)/2

385K

det| 11 9 ; 4 12 | = 96

det| 7 4 ; 4 8 | = 40

163K

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

259K

∇ × E = −∂B/∂t

8x² + 2x + 7 = 0

305K

N₂ + 3H₂ ⇌ 2NH₃

57K

C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

293K

∫₀^∞ e^(-α²) dα = √π / 2

110K