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| 3 4 ; 6 4 | = -12
144K
\oint_C \vec{F}\cdot d\vec{r} = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
7z² + 2z + 5 = 0
\lim_{z\to 0} \frac{\sin z}{z} = 1
94K
det| 1 7 ; 2 2 | = -12
211K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 3 2 ; 1 4 | = 10
CH₄ + 2O₂ → CO₂ + 2H₂O
352K
ω = 2πf
\lim_{x\to 0} \frac{\sin x}{x} = 1
16K
det| 11 8 ; 3 12 | = 108
110K
\frac{5}{4} \sum_{i=1}^{n} i^{2}
134K