Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:23Z
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
320K
\oint_C \vec{F}\cdot d\vec{r} = 0
∑_{k=1}^{n} k = n(n+1)/2
438K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
29K
7z² + 2z + 5 = 0
det| 10 7 ; 3 11 | = 89
94K
det| 9 7 ; 3 10 | = 69
211K
\frac{7}{4} \sum_{i=1}^{n} i^{2}
16K