Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 01:29Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
\lim_{r\to 0} \frac{\sin r}{r} = 1
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ω = 2πf
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
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det| 1 7 ; 1 2 | = -5
det| 9 4 ; 1 10 | = 86
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
∫₀^∞ e^(-θ²) dθ = √π / 2
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d/dn [n^1] = 1n^0
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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