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
446K
8n² + 3n + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
371K
∂x/∂α = 7x
\frac{4}{6} \sum_{i=1}^{n} i^{2}
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\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
∫₀^∞ e^(-θ²) dθ = √π / 2
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∫₀^∞ e^(-α²) dα = √π / 2
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\lim_{β\to 0} \frac{\sin β}{β} = 1
∫₀^∞ e^(-ω²) dω = √π / 2
218K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
Fe₂O₃ + 3CO → 2Fe + 3CO₂
402K
5ψ² + 5ψ + 0 = 0