Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 01:17Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
∑_{k=1}^{n} k = n(n+1)/2
468K
ω = 2πf
Fe₂O₃ + 3CO → 2Fe + 3CO₂
289K
det| 9 4 ; 1 10 | = 86
278K
det| 1 7 ; 1 2 | = -5
Fe₂O₃ + 3CO → 2Fe + 3CO₂
177K
∑_{k=1}^{n} k = n(n+1)/2
358K
det| 2 7 ; 7 3 | = -43
399K