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| 1 1 ; 5 2 | = -3
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∑_{k=1}^{n} k = n(n+1)/2
61K
∇²x = 0
\frac{7}{1} \sum_{i=1}^{n} i^{2}
380K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
E = mc²
\binom{n}{k} = \frac{n!}{k!(n-k)!}
32K