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 00:09Z

∑_{k=1}^{n} k = n(n+1)/2

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

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

AgNO₃ + NaCl → AgCl↓ + NaNO₃

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

∇²t = 0

e^{i\pi} + 1 = 0

259K

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

86K

7z² + 2z + 0 = 0

det| 9 4 ; 1 10 | = 86

224K

∂ψ/∂β = 3ψ

234K

∂α/∂r = 8α

218K

PV = nRT

354K