Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-19 07:37Z
∂y/∂t = 1y
Fe₂O₃ + 3CO → 2Fe + 3CO₂
66K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 2 7 ; 7 3 | = -43
87K
ΔS ≥ 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
174K
∑_{k=1}^{n} k = n(n+1)/2
61K
det| 6 1 ; 1 7 | = 41
∫₀^∞ e^(-t²) dt = √π / 2
380K
det| 7 4 ; 4 8 | = 40
335K
\lim_{n\to 0} \frac{\sin n}{n} = 1
\frac{11}{6} \sum_{i=1}^{n} i^{2}
472K
\frac{9}{7} \sum_{i=1}^{n} i^{2}