Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:31Z
∫₀^∞ e^(-φ²) dφ = √π / 2
det| 1 9 ; 5 2 | = -43
∫₀^∞ e^(-φ²) dφ = √π / 2
90K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
29K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 4 6 ; 4 5 | = -4
94K
det| 7 4 ; 4 8 | = 40
211K
det| 11 9 ; 1 12 | = 123
\lim_{β\to 0} \frac{\sin β}{β} = 1
390K
2n² + 5n + 6 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
144K
d/dβ [β^5] = 5β^4
ΔS ≥ 0