Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 18:47Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
144K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
det| 4 8 ; 3 5 | = -4
90K
det| 7 4 ; 4 8 | = 40
438K
2r² + 6r + 5 = 0
∑_{k=1}^{n} k = n(n+1)/2
394K
E = mc²
∂y/∂y = 3y
det| 12 3 ; 4 13 | = 144
69K
ΔS ≥ 0
∑_{k=1}^{n} k = n(n+1)/2
det| 4 5 ; 4 5 | = 0
2n² + 9n + 2 = 0