Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 23:18Z
d/dn [n^4] = 4n^3
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
\lim_{β\to 0} \frac{\sin β}{β} = 1
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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iħ ∂ψ/∂t = Ĥψ
∫₀^∞ e^(-ψ²) dψ = √π / 2
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∫₀^∞ e^(-θ²) dθ = √π / 2
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\frac{2}{4} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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