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 00:13Z

∑_{k=1}^{n} k = n(n+1)/2

Fe₂O₃ + 3CO → 2Fe + 3CO₂

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∑_{k=1}^{n} k = n(n+1)/2

446K

3x² + 3x + 6 = 0

det| 7 4 ; 4 8 | = 40

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

371K

∇²t = 0

d/dθ [θ^3] = 3θ^2

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N₂ + 3H₂ ⇌ 2NH₃

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C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

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∫₀^∞ e^(-α²) dα = √π / 2

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