Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:46Z
d/dn [n^4] = 4n^3
∑_{k=1}^{n} k = n(n+1)/2
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
163K
det| 11 5 ; 0 12 | = 132
259K
iħ ∂ψ/∂t = Ĥψ
\frac{2}{4} \sum_{i=1}^{n} i^{2}
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
293K
det| 5 7 ; 5 6 | = -5
\binom{n}{k} = \frac{n!}{k!(n-k)!}
34K