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 07:53Z

∑_{k=1}^{n} k = n(n+1)/2

∑_{k=1}^{n} k = n(n+1)/2

46K

det| 12 9 ; 5 13 | = 111

468K

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

det| 3 6 ; 0 4 | = 12

289K

8θ² + 8θ + 6 = 0

278K

∂x/∂θ = 8x

∇²β = 0

339K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

177K

3φ² + 4φ + 2 = 0

11z² + 3z + 4 = 0

358K

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

121K

det| 9 4 ; 1 10 | = 86

399K