Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:23Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
\lim_{r\to 0} \frac{\sin r}{r} = 1
222K
∑_{k=1}^{n} k = n(n+1)/2
\frac{4}{6} \sum_{i=1}^{n} i^{2}
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\lim_{z\to 0} \frac{\sin z}{z} = 1
174K
det| 7 4 ; 4 8 | = 40
61K
∇²x = 0
det| 5 6 ; 4 6 | = 6
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
119K
E = mc²