Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:21Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
90K
\oint_C \vec{F}\cdot d\vec{r} = 0
438K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
7z² + 2z + 5 = 0
det| 6 4 ; 4 7 | = 26
94K
det| 12 9 ; 5 13 | = 111
211K
\frac{11}{2} \sum_{i=1}^{n} i^{2}
390K
det| 9 5 ; 4 10 | = 70
352K