Σ index Eq pack 19 Eq pack 13 Σ#12 Batch 22 Matrix 17 Σ#24 Batch 10 Ledger /9 Rxn set 8 Eq pack 25 Σ#18 Rxn set 26 Rxn set 14 Matrix 5 Ledger /3 Matrix 23

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-19 07:39Z

∑_{k=1}^{n} k = n(n+1)/2

det| 9 6 ; 0 10 | = 90

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

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

\lim_{r\to 0} \frac{\sin r}{r} = 1

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det| 7 2 ; 7 8 | = 42

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∂x/∂θ = 8x

8ψ² + 7ψ + 0 = 0

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5z² + 8z + 3 = 0

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Fe₂O₃ + 3CO → 2Fe + 3CO₂

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CH₄ + 2O₂ → CO₂ + 2H₂O

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e^{i\pi} + 1 = 0

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N₂ + 3H₂ ⇌ 2NH₃

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iħ ∂ψ/∂t = Ĥψ

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