Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:22Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
\frac{3}{4} \sum_{i=1}^{n} i^{2}
90K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
7z² + 2z + 5 = 0
det| 11 9 ; 0 12 | = 132
211K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 3 2 ; 1 4 | = 10
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
16K