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 00:04Z

∑_{k=1}^{n} k = n(n+1)/2

\frac{6}{7} \sum_{i=1}^{n} i^{2}

168K

ω = 2πf

446K

3x² + 3x + 6 = 0

iħ ∂ψ/∂t = Ĥψ

144K

2H₂ + O₂ → 2H₂O

371K

∇²t = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

259K

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

86K

7z² + 2z + 0 = 0

det| 2 6 ; 0 3 | = 6

224K

det| 7 4 ; 4 8 | = 40

234K

det| 4 2 ; 5 5 | = 10

\binom{n}{k} = \frac{n!}{k!(n-k)!}

218K

8θ² + 8θ + 6 = 0

354K

2H₂ + O₂ → 2H₂O

ΔS ≥ 0

70K

∇²z = 0

402K

[ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26]