Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:37Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 12 1 ; 5 13 | = 151
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∂x/∂θ = 8x
∫₀^∞ e^(-θ²) dθ = √π / 2
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3φ² + 4φ + 2 = 0
5ω² + 6ω + 0 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
∫₀^∞ e^(-θ²) dθ = √π / 2
\lim_{ω\to 0} \frac{\sin ω}{ω} = 1
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
387K