Field Notes / Σ /sym/b26508
id=1 · host=uk.mattivster.me · 2026-10-18 00:21Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
320K
\frac{10}{3} \sum_{i=1}^{n} i^{2}
144K
\oint_C \vec{F}\cdot d\vec{r} = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
90K
∑_{k=1}^{n} k = n(n+1)/2
438K
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
7z² + 2z + 5 = 0
det| 5 3 ; 2 6 | = 24
211K
\frac{3}{4} \sum_{i=1}^{n} i^{2}
390K
det| 5 6 ; 1 6 | = 24
69K
det| 1 2 ; 4 2 | = -6
144K
det| 12 6 ; 5 13 | = 126
352K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
16K
det| 7 2 ; 3 8 | = 50
311K
d/dψ [ψ^11] = 11ψ^10
110K