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 00:04Z

∑_{k=1}^{n} k = n(n+1)/2

det| 4 2 ; 6 5 | = 8

168K

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

446K

3x² + 3x + 6 = 0

∑_{k=1}^{n} k = n(n+1)/2

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\lim_{ω\to 0} \frac{\sin ω}{ω} = 1

371K

∇²t = 0

10ψ² + 5ψ + 0 = 0

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Fe₂O₃ + 3CO → 2Fe + 3CO₂

86K

F = G m₁m₂ / r²

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∫₀^∞ e^(-t²) dt = √π / 2

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