Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:02Z
d/dn [n^4] = 4n^3
∫₀^∞ e^(-r²) dr = √π / 2
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\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
\lim_{r\to 0} \frac{\sin r}{r} = 1
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iħ ∂ψ/∂t = Ĥψ
\frac{2}{4} \sum_{i=1}^{n} i^{2}
det| 3 6 ; 0 4 | = 12
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det| 5 7 ; 5 6 | = -5
AgNO₃ + NaCl → AgCl↓ + NaNO₃
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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2r² + 6r + 7 = 0