Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 18:52Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
320K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
det| 9 4 ; 1 10 | = 86
90K
2r² + 6r + 5 = 0
det| 1 2 ; 4 2 | = -6
394K
∫₀^∞ e^(-x²) dx = √π / 2
69K
det| 12 9 ; 5 13 | = 111
144K