Σ index Ledger /3 Matrix 11 Matrix 23 Rxn set 8 Rxn set 20 Batch 16 Σ#6 Eq pack 13 Σ#24 Σ#12 Matrix 17 Ledger /9 Rxn set 26 Batch 4 Σ#18

Field Notes / Σ /sym/3cad98

id=1 · host=formula-vault.cloud · 2026-10-18 22:59Z

∑_{k=1}^{n} k = n(n+1)/2

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

384K

∑_{k=1}^{n} k = n(n+1)/2

385K

det| 11 9 ; 4 12 | = 96

5z² + 8z + 3 = 0

163K

12y² + 5y + 7 = 0

259K

∇ × E = −∂B/∂t

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

305K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

57K

8ψ² + 7ψ + 0 = 0

293K

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

110K

det| 12 9 ; 5 13 | = 111

300K

∇ × E = −∂B/∂t

34K

\frac{8}{7} \sum_{i=1}^{n} i^{2}

354K