Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 15:56Z
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 5 6 ; 7 6 | = -12
66K
det| 7 4 ; 4 8 | = 40
222K
∫₀^∞ e^(-ω²) dω = √π / 2
\frac{2}{2} \sum_{i=1}^{n} i^{2}
2K
\frac{1}{8} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
174K
∑_{k=1}^{n} k = n(n+1)/2
61K
F = ma
\oint_C \vec{F}\cdot d\vec{r} = 0
380K
F = G m₁m₂ / r²
∫₀^∞ e^(-φ²) dφ = √π / 2
472K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O