Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:54Z
∫₀^∞ e^(-φ²) dφ = √π / 2
∫₀^∞ e^(-t²) dt = √π / 2
144K
det| 1 9 ; 5 2 | = -43
∑_{k=1}^{n} k = n(n+1)/2
90K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
438K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
\oint_C \vec{F}\cdot d\vec{r} = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
94K
\lim_{r\to 0} \frac{\sin r}{r} = 1
211K
det| 11 9 ; 1 12 | = 123
∑_{k=1}^{n} k = n(n+1)/2
390K
det| 9 4 ; 1 10 | = 86
69K
2n² + 5n + 6 = 0
d/dβ [β^5] = 5β^4