Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:45Z
∂y/∂t = 1y
det| 7 1 ; 7 8 | = 49
66K
det| 11 2 ; 5 12 | = 122
222K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
2K
ΔS ≥ 0
det| 6 1 ; 1 7 | = 41
\lim_{n\to 0} \frac{\sin n}{n} = 1
∑_{k=1}^{n} k = n(n+1)/2
119K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
472K
\frac{9}{7} \sum_{i=1}^{n} i^{2}
3α² + 5α + 4 = 0