Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:22Z
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
320K
\oint_C \vec{F}\cdot d\vec{r} = 0
\frac{3}{4} \sum_{i=1}^{n} i^{2}
438K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 8 6 ; 5 9 | = 42
394K
\frac{7}{4} \sum_{i=1}^{n} i^{2}
29K
7z² + 2z + 5 = 0