Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:21Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
det| 7 3 ; 6 8 | = 38
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{7}{1} \sum_{i=1}^{n} i^{2}
174K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
61K
∇²x = 0
det| 4 6 ; 0 5 | = 20
335K