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

det| 4 8 ; 3 5 | = -4

168K

d/dt [t^3] = 3t^2

446K

3x² + 3x + 6 = 0

det| 6 7 ; 0 7 | = 42

144K

ω = 2πf

371K

∇²t = 0

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

259K

det| 7 7 ; 4 8 | = 28

86K

7z² + 2z + 0 = 0

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

224K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

234K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

218K

∫₀^∞ e^(-t²) dt = √π / 2

354K

∂z/∂φ = 7z

70K

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

402K

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