Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 08:47Z
d/dz [z^12] = 12z^11
∑_{k=1}^{n} k = n(n+1)/2
320K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 7 8 ; 4 8 | = 24
90K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 11 2 ; 5 12 | = 122
394K
∫₀^∞ e^(-φ²) dφ = √π / 2
29K
12β² + 9β + 7 = 0
det| 7 4 ; 4 8 | = 40
211K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 12 9 ; 5 13 | = 111
390K
∑_{k=1}^{n} k = n(n+1)/2
69K