Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:54Z
∑_{k=1}^{n} k = n(n+1)/2
det| 12 2 ; 2 13 | = 152
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\frac{6}{1} \sum_{i=1}^{n} i^{2}
∫₀^∞ e^(-θ²) dθ = √π / 2
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\oint_C \vec{F}\cdot d\vec{r} = 0
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∂x/∂θ = 8x
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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det| 9 4 ; 1 10 | = 86
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∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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