Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 21:56Z
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\lim_{r\to 0} \frac{\sin r}{r} = 1
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det| 4 7 ; 0 5 | = 20
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\lim_{β\to 0} \frac{\sin β}{β} = 1
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∑_{k=1}^{n} k = n(n+1)/2
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