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 06:53Z

det| 3 9 ; 6 4 | = -42

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

168K

ω = 2πf

446K

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

144K

det| 9 4 ; 1 10 | = 86

371K

2z² + 2z + 5 = 0

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

259K

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

86K

iħ ∂ψ/∂t = Ĥψ

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

224K

\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

234K

10t² + 9t + 5 = 0

218K