Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 03:20Z
\frac{1}{3} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
\frac{7}{1} \sum_{i=1}^{n} i^{2}
174K
∇²x = 0
∑_{k=1}^{n} k = n(n+1)/2
380K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
335K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
119K
det| 11 9 ; 0 12 | = 132
472K
det| 9 4 ; 1 10 | = 86
392K
det| 9 7 ; 3 10 | = 69
32K