Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 18:56Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
∑_{k=1}^{n} k = n(n+1)/2
90K
2r² + 6r + 5 = 0
∑_{k=1}^{n} k = n(n+1)/2
394K
E = mc²
det| 4 6 ; 0 5 | = 20
94K
∂y/∂y = 3y