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 00:03Z

∑_{k=1}^{n} k = n(n+1)/2

∫₀^∞ e^(-x²) dx = √π / 2

168K

e^{i\pi} + 1 = 0

446K

3x² + 3x + 6 = 0

Fe₂O₃ + 3CO → 2Fe + 3CO₂

144K

AgNO₃ + NaCl → AgCl↓ + NaNO₃

371K

∇²t = 0

PV = nRT

259K

N₂ + 3H₂ ⇌ 2NH₃

86K

7z² + 2z + 0 = 0

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

224K

e^{i\pi} + 1 = 0

234K

4y² + 5y + 3 = 0

218K

ω = 2πf

354K