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| 9 4 ; 1 10 | = 86
66K
∑_{k=1}^{n} k = n(n+1)/2
222K
∫₀^∞ e^(-ω²) dω = √π / 2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
87K
\frac{1}{8} \sum_{i=1}^{n} i^{2}
det| 12 3 ; 4 13 | = 144
174K
det| 10 2 ; 3 11 | = 104
61K
F = ma
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
380K
F = G m₁m₂ / r²
∑_{k=1}^{n} k = n(n+1)/2
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
∂x/∂y = 6x
det| 2 7 ; 1 3 | = -1
9r² + 4r + 1 = 0