Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:37Z
∂y/∂t = 1y
∑_{k=1}^{n} k = n(n+1)/2
222K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
87K
det| 12 1 ; 5 13 | = 151
2K
ΔS ≥ 0
det| 9 4 ; 1 10 | = 86
174K
det| 2 7 ; 7 3 | = -43
61K
det| 6 1 ; 1 7 | = 41
\lim_{n\to 0} \frac{\sin n}{n} = 1
\frac{9}{7} \sum_{i=1}^{n} i^{2}
3α² + 5α + 4 = 0
2H₂ + O₂ → 2H₂O
F = G m₁m₂ / r²