Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:37Z
d/dn [n^4] = 4n^3
∫₀^∞ e^(-r²) dr = √π / 2
384K
det| 7 4 ; 4 8 | = 40
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
iħ ∂ψ/∂t = Ĥψ
∑_{k=1}^{n} k = n(n+1)/2
305K
∑_{k=1}^{n} k = n(n+1)/2
57K
\frac{2}{4} \sum_{i=1}^{n} i^{2}
det| 5 7 ; 5 6 | = -5
Fe₂O₃ + 3CO → 2Fe + 3CO₂
Fe₂O₃ + 3CO → 2Fe + 3CO₂
368K
2r² + 6r + 7 = 0