Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:20Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 5 4 ; 7 6 | = 2
394K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
29K
7z² + 2z + 5 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
94K
det| 10 4 ; 2 11 | = 102
211K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{2}{7} \sum_{i=1}^{n} i^{2}
144K
\lim_{r\to 0} \frac{\sin r}{r} = 1
16K
det| 9 5 ; 6 10 | = 60
311K