Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:03Z
∑_{k=1}^{n} k = n(n+1)/2
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
446K
3x² + 3x + 6 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
371K
∇²t = 0
det| 2 3 ; 5 3 | = -9
259K
7z² + 2z + 0 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
224K
\lim_{β\to 0} \frac{\sin β}{β} = 1
234K
det| 4 2 ; 5 5 | = 10
∫₀^∞ e^(-t²) dt = √π / 2
218K
11t² + 9t + 4 = 0
2H₂ + O₂ → 2H₂O
iħ ∂ψ/∂t = Ĥψ
\lim_{x\to 0} \frac{\sin x}{x} = 1
11θ² + 6θ + 7 = 0