Field Notes / Σ /sym/7c9c7e
id=789480 · host=uk.mattivster.me · 2026-08-30 18:47Z
∑_{k=1}^{n} k = n(n+1)/2
det| 1 9 ; 7 2 | = -61
AgNO₃ + NaCl → AgCl↓ + NaNO₃
CH₄ + 2O₂ → CO₂ + 2H₂O
428K
det| 12 8 ; 2 13 | = 140
\frac{11}{6} \sum_{i=1}^{n} i^{2}
350K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
141K
12r² + 3r + 4 = 0
\frac{8}{8} \sum_{i=1}^{n} i^{2}
∇²x = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂