Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 22:49Z
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
det| 10 6 ; 4 11 | = 86
∑_{k=1}^{n} k = n(n+1)/2
90K
∑_{k=1}^{n} k = n(n+1)/2
438K
ΔS ≥ 0
∑_{k=1}^{n} k = n(n+1)/2
394K
9α² + 3α + 1 = 0
det| 3 4 ; 4 4 | = -4
det| 7 4 ; 4 8 | = 40
390K
\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1