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
\binom{n}{k} = \frac{n!}{k!(n-k)!}
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
AgNO₃ + NaCl → AgCl↓ + NaNO₃
61K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
380K
\oint_C \vec{F}\cdot d\vec{r} = 0
119K