Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-21 19:19Z
∂y/∂x = 6y
det| 5 3 ; 6 6 | = 12
∑_{k=1}^{n} k = n(n+1)/2
7K
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-x²) dx = √π / 2
414K
\frac{10}{6} \sum_{i=1}^{n} i^{2}
det| 7 4 ; 4 8 | = 40
468K
\lim_{β\to 0} \frac{\sin β}{β} = 1