Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:21Z
∑_{k=1}^{n} k = n(n+1)/2
det| 11 4 ; 2 12 | = 124
144K
\oint_C \vec{F}\cdot d\vec{r} = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
438K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 7 6 ; 1 8 | = 50
29K
7z² + 2z + 5 = 0
det| 5 3 ; 2 6 | = 24
211K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 3 2 ; 1 4 | = 10
det| 2 1 ; 5 3 | = 1
144K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
352K
ω = 2πf