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 00:05Z

∑_{k=1}^{n} k = n(n+1)/2

10β² + 4β + 1 = 0

168K

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

446K

3x² + 3x + 6 = 0

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

144K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

371K

∇²t = 0

F = G m₁m₂ / r²

259K

F = G m₁m₂ / r²

86K

7z² + 2z + 0 = 0

det| 9 4 ; 1 10 | = 86

224K

F = G m₁m₂ / r²

234K

∂α/∂r = 8α

218K

3r² + 2r + 0 = 0

354K

iħ ∂ψ/∂t = Ĥψ

70K

6n² + 7n + 6 = 0

402K