Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:22Z
d/dn [n^4] = 4n^3
\frac{3}{2} \sum_{i=1}^{n} i^{2}
384K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
385K
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
iħ ∂ψ/∂t = Ĥψ
det| 9 6 ; 0 10 | = 90
57K
\frac{2}{4} \sum_{i=1}^{n} i^{2}
det| 5 7 ; 5 6 | = -5
det| 7 8 ; 4 8 | = 24
300K
\lim_{β\to 0} \frac{\sin β}{β} = 1
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
∫₀^∞ e^(-θ²) dθ = √π / 2
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2r² + 6r + 7 = 0