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 00:10Z

∑_{k=1}^{n} k = n(n+1)/2

e^{i\pi} + 1 = 0

168K

∇ × E = −∂B/∂t

446K

3x² + 3x + 6 = 0

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

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

∇²t = 0

det| 4 2 ; 6 5 | = 8

259K

det| 12 1 ; 5 13 | = 151

86K

7z² + 2z + 0 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

224K

∫₀^∞ e^(-t²) dt = √π / 2

234K

det| 4 2 ; 5 5 | = 10

8ψ² + 7ψ + 0 = 0

218K

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

354K