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Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-20 00:57Z

∑_{k=1}^{n} k = n(n+1)/2

\frac{8}{6} \sum_{i=1}^{n} i^{2}

168K

9α² + 7α + 5 = 0

446K

3x² + 3x + 6 = 0

∇²t = 0

144K

iħ ∂ψ/∂t = Ĥψ

371K

∇²t = 0

8ψ² + 7ψ + 0 = 0

259K

\frac{4}{9} \sum_{i=1}^{n} i^{2}

86K

7z² + 2z + 0 = 0

2H₂ + O₂ → 2H₂O

224K

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

234K

λ = h/p

218K

N₂ + 3H₂ ⇌ 2NH₃

354K