Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 17:57Z
∫₀^∞ e^(-φ²) dφ = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
320K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
144K
det| 1 9 ; 5 2 | = -43
det| 5 9 ; 0 6 | = 30
90K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 12 9 ; 5 13 | = 111
394K
det| 7 8 ; 4 8 | = 24
29K
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 11 9 ; 1 12 | = 123
∑_{k=1}^{n} k = n(n+1)/2
390K
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
69K
2n² + 5n + 6 = 0