Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-09-30 05:25Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
48K
\lim_{r\to 0} \frac{\sin r}{r} = 1
∇²θ = 0
∑_{k=1}^{n} k = n(n+1)/2
276K
\frac{12}{2} \sum_{i=1}^{n} i^{2}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
231K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 11 3 ; 1 12 | = 129
6φ² + 4φ + 1 = 0
\frac{7}{6} \sum_{i=1}^{n} i^{2}
2H₂ + O₂ → 2H₂O
ω = 2πf