Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 20:57Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∑_{k=1}^{n} k = n(n+1)/2
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CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
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e^{i\pi} + 1 = 0
\lim_{t\to 0} \frac{\sin t}{t} = 1
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∑_{k=1}^{n} k = n(n+1)/2
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∂x/∂r = 4x
\oint_C \vec{F}\cdot d\vec{r} = 0
399K
det| 7 4 ; 4 8 | = 40
11K
\oint_C \vec{F}\cdot d\vec{r} = 0
387K