Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:19Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
87K
det| 9 4 ; 1 10 | = 86
2K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
174K
∇²x = 0
det| 12 1 ; 5 13 | = 151
335K
\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
472K
det| 2 7 ; 7 3 | = -43
392K