Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 01:20Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
ω = 2πf
\lim_{α\to 0} \frac{\sin α}{α} = 1
289K
det| 1 7 ; 1 2 | = -5
\binom{n}{k} = \frac{n!}{k!(n-k)!}
339K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
358K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
121K
\frac{2}{2} \sum_{i=1}^{n} i^{2}
399K
det| 9 4 ; 1 10 | = 86
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det| 1 4 ; 3 2 | = -10
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