Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:45Z
∇ × E = −∂B/∂t
∫₀^∞ e^(-t²) dt = √π / 2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
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∂x/∂n = 6x
\lim_{x\to 0} \frac{\sin x}{x} = 1
det| 3 6 ; 0 4 | = 12
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5
5y² + 1y + 3 = 0