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 04:14Z

12r² + 6r + 1 = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

168K

det| 9 4 ; 1 10 | = 86

446K

∑_{k=1}^{n} k = n(n+1)/2

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

144K

∑_{k=1}^{n} k = n(n+1)/2

371K

4t² + 9t + 6 = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

∇²ψ = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

224K

∂z/∂φ = 7z

234K

F = ma

∑_{k=1}^{n} k = n(n+1)/2

218K

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

354K