Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 01:59Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
46K
ω = 2πf
∑_{k=1}^{n} k = n(n+1)/2
289K
det| 12 9 ; 5 13 | = 111
278K
det| 1 7 ; 1 2 | = -5
det| 9 4 ; 1 10 | = 86
339K
det| 5 3 ; 7 6 | = 9
177K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
358K
∑_{k=1}^{n} k = n(n+1)/2
121K
d/dn [n^1] = 1n^0
8β² + 8β + 2 = 0
det| 1 7 ; 4 2 | = -26
∂γ/∂ψ = 5γ
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O