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 00:15Z

∑_{k=1}^{n} k = n(n+1)/2

∫₀^∞ e^(-t²) dt = √π / 2

168K

F = G m₁m₂ / r²

446K

3x² + 3x + 6 = 0

det| 9 4 ; 1 10 | = 86

144K

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

371K

∇²t = 0

iħ ∂ψ/∂t = Ĥψ

259K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

86K

4t² + 3t + 3 = 0

224K

10ψ² + 5ψ + 0 = 0

234K

\frac{12}{6} \sum_{i=1}^{n} i^{2}

218K

d/dx [x^3] = 3x^2

354K

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

70K