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 00:03Z

∑_{k=1}^{n} k = n(n+1)/2

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

168K

∇²θ = 0

446K

3x² + 3x + 6 = 0

∫₀^∞ e^(-t²) dt = √π / 2

144K

det| 9 8 ; 3 10 | = 66

371K

∇²t = 0

3r² + 3r + 7 = 0

259K

12z² + 9z + 4 = 0

86K

2n² + 4n + 0 = 0

224K

det| 3 7 ; 2 4 | = -2

234K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

218K