Σ index Eq pack 19 Rxn set 20 Rxn set 26 Σ#24 Σ#12 Ledger /21 Eq pack 13 Ledger /3 Eq pack 1 Batch 16 Σ#18 Σ#6 Ledger /15 Batch 4

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 00:21Z

∑_{k=1}^{n} k = n(n+1)/2

e^{i\pi} + 1 = 0

168K

10ψ² + 5ψ + 0 = 0

446K

3x² + 3x + 6 = 0

ΔS ≥ 0

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

∇²t = 0

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

259K

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

86K

7z² + 2z + 0 = 0

det| 9 4 ; 1 10 | = 86

224K

det| 7 9 ; 1 8 | = 47

234K

det| 4 7 ; 2 5 | = 6

218K

det| 2 6 ; 0 3 | = 6

354K

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

70K