Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-21 20:32Z
\lim_{r\to 0} \frac{\sin r}{r} = 1
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 2 8 ; 7 3 | = -50
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∇ × E = −∂B/∂t
∑_{k=1}^{n} k = n(n+1)/2
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7x² + 5x + 2 = 0
λ = h/p
Fe₂O₃ + 3CO → 2Fe + 3CO₂
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\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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∂α/∂r = 6α
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
∇²φ = 0