Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 02:11Z
∇²x = 0
det| 7 4 ; 4 8 | = 40
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∑_{k=1}^{n} k = n(n+1)/2
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8n² + 3n + 6 = 0
∂x/∂α = 7x
\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
det| 7 6 ; 1 8 | = 50
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\lim_{β\to 0} \frac{\sin β}{β} = 1
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∫₀^∞ e^(-t²) dt = √π / 2
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