Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 05:55Z
CaCO₃ → CaO + CO₂
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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\lim_{φ\to 0} \frac{\sin φ}{φ} = 1
∑_{k=1}^{n} k = n(n+1)/2
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\oint_C \vec{F}\cdot d\vec{r} = 0
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det| 12 4 ; 2 13 | = 148
det| 9 4 ; 1 10 | = 86
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\lim_{t\to 0} \frac{\sin t}{t} = 1
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