Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:42Z
∇ × E = −∂B/∂t
det| 7 4 ; 4 8 | = 40
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
∂x/∂n = 6x
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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\lim_{x\to 0} \frac{\sin x}{x} = 1
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 12 1 ; 5 13 | = 151
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12β² + 7β + 0 = 0
N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5
5y² + 1y + 3 = 0