Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 03:49Z
∇ × E = −∂B/∂t
det| 7 4 ; 4 8 | = 40
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∫₀^∞ e^(-x²) dx = √π / 2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 8 ; 3 10 | = 66
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∂x/∂n = 6x
\lim_{x\to 0} \frac{\sin x}{x} = 1
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
12β² + 7β + 0 = 0
N₂ + 3H₂ ⇌ 2NH₃
d/dy [y^6] = 6y^5
5y² + 1y + 3 = 0
6θ² + 9θ + 7 = 0