Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:42Z
∑_{k=1}^{n} k = n(n+1)/2
\oint_C \vec{F}\cdot d\vec{r} = 0
46K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 4 2 ; 6 5 | = 8
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∂x/∂θ = 8x
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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3φ² + 4φ + 2 = 0
H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
358K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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5ω² + 6ω + 0 = 0
∫₀^∞ e^(-θ²) dθ = √π / 2
det| 2 6 ; 0 3 | = 6
387K
e^{i\pi} + 1 = 0