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
\lim_{r\to 0} \frac{\sin r}{r} = 1
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
ω = 2πf
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
278K
det| 1 7 ; 1 2 | = -5
det| 9 4 ; 1 10 | = 86
177K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
d/dn [n^1] = 1n^0
\frac{4}{9} \sum_{i=1}^{n} i^{2}
399K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
8β² + 8β + 2 = 0
det| 1 7 ; 4 2 | = -26