Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-06 07:26Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{1}{3} \sum_{i=1}^{n} i^{2}
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
CH₄ + 2O₂ → CO₂ + 2H₂O
391K
5x² + 3x + 2 = 0
\frac{11}{6} \sum_{i=1}^{n} i^{2}
158K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
316K
det| 1 7 ; 7 2 | = -47
\frac{7}{9} \sum_{i=1}^{n} i^{2}
5β² + 6β + 0 = 0
1n² + 1n + 0 = 0