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}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
222K
∑_{k=1}^{n} k = n(n+1)/2
det| 12 9 ; 5 13 | = 111
87K
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∫₀^∞ e^(-t²) dt = √π / 2
174K
det| 5 6 ; 2 6 | = 18
61K
∇²x = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
119K
E = mc²
\lim_{x\to 0} \frac{\sin x}{x} = 1