Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 15:18Z
F = G m₁m₂ / r²
4z² + 8z + 7 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
375K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∑_{k=1}^{n} k = n(n+1)/2
165K
det| 9 4 ; 1 10 | = 86
372K
11n² + 2n + 4 = 0
det| 7 8 ; 6 8 | = 8
430K
\frac{9}{8} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
336K
\frac{4}{4} \sum_{i=1}^{n} i^{2}
det| 10 2 ; 3 11 | = 104
215K