Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:39Z
∂y/∂t = 1y
det| 1 2 ; 7 2 | = -12
66K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
ΔS ≥ 0
∑_{k=1}^{n} k = n(n+1)/2
61K
det| 6 1 ; 1 7 | = 41
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\lim_{n\to 0} \frac{\sin n}{n} = 1
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
119K
\frac{9}{7} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
392K