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 00:29Z

∑_{k=1}^{n} k = n(n+1)/2

d/dψ [ψ^7] = 7ψ^6

168K

∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

det| 9 4 ; 1 10 | = 86

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

∇²t = 0

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

259K

7y² + 9y + 1 = 0

86K

4t² + 3t + 3 = 0

224K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

234K

∂z/∂ψ = 1z

218K

det| 4 7 ; 2 5 | = 6

354K

iħ ∂ψ/∂t = Ĥψ

70K