Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 01:33Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
∑_{k=1}^{n} k = n(n+1)/2
468K
ω = 2πf
det| 1 7 ; 1 2 | = -5
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
339K
det| 7 4 ; 4 8 | = 40
177K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\frac{3}{2} \sum_{i=1}^{n} i^{2}
358K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
121K
d/dn [n^1] = 1n^0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
399K
∫₀^∞ e^(-ψ²) dψ = √π / 2
316K
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
387K