Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 02:02Z
∇²t = 0
det| 9 4 ; 1 10 | = 86
232K
7r² + 4r + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
375K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
47K
∇²β = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
165K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
372K
\frac{8}{9} \sum_{i=1}^{n} i^{2}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
130K
8r² + 8r + 0 = 0
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 4 1 ; 3 5 | = 17