Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 02:07Z
∇²x = 0
∫₀^∞ e^(-r²) dr = √π / 2
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det| 7 4 ; 4 8 | = 40
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8n² + 3n + 6 = 0
det| 9 6 ; 7 10 | = 48
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\lim_{r\to 0} \frac{\sin r}{r} = 1
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∂x/∂α = 7x
∑_{k=1}^{n} k = n(n+1)/2
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\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
\lim_{β\to 0} \frac{\sin β}{β} = 1
\oint_C \vec{F}\cdot d\vec{r} = 0
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AgNO₃ + NaCl → AgCl↓ + NaNO₃
5ψ² + 5ψ + 0 = 0