Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-20 03:34Z
PV = nRT
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
232K
e^{i\pi} + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
375K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 2 ; 1 8 | = 54
det| 9 9 ; 5 10 | = 45
130K
\frac{8}{2} \sum_{i=1}^{n} i^{2}
det| 1 1 ; 5 2 | = -3
det| 5 8 ; 1 6 | = 22
d/dφ [φ^9] = 9φ^8
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O