Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 18:54Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
320K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
det| 7 2 ; 7 8 | = 42
438K
2r² + 6r + 5 = 0
det| 12 3 ; 4 13 | = 144
29K
∑_{k=1}^{n} k = n(n+1)/2
390K