Σ index Rxn set 20 Rxn set 14 Batch 4 Ledger /15 Eq pack 7 Ledger /9 Matrix 17 Matrix 11 Batch 10 Eq pack 13 Batch 22 Ledger /21

Field Notes / Σ /sym/e5c743

id=12564 · host=uk.mattivster.me · 2026-08-30 18:46Z

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

d/dx [x^3] = 3x^2

277K

ΔS ≥ 0

306K

F = ma

d/dx [x^3] = 3x^2

382K

12z² + 1z + 7 = 0

218K

10y² + 6y + 6 = 0

CaCO₃ → CaO + CO₂

201K

CH₄ + 2O₂ → CO₂ + 2H₂O

428K

Fe₂O₃ + 3CO → 2Fe + 3CO₂

\frac{11}{6} \sum_{i=1}^{n} i^{2}

350K

H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O

141K

F = G m₁m₂ / r²

3t² + 1t + 5 = 0

21K

∑_{k=1}^{n} k = n(n+1)/2

4r² + 1r + 5 = 0

det| 11 4 ; 2 12 | = 124