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 00:50Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

168K

det| 12 9 ; 5 13 | = 111

446K

3x² + 3x + 6 = 0

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

144K

det| 11 9 ; 0 12 | = 132

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

6x² + 6x + 1 = 0

86K

7z² + 2z + 0 = 0

iħ ∂ψ/∂t = Ĥψ

224K

e^{i\pi} + 1 = 0

234K

det| 5 9 ; 7 6 | = -33

218K

F = ma

354K

N₂ + 3H₂ ⇌ 2NH₃

70K