Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:12Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{12}{6} \sum_{i=1}^{n} i^{2}
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∑_{k=1}^{n} k = n(n+1)/2
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
3φ² + 4φ + 2 = 0
\lim_{α\to 0} \frac{\sin α}{α} = 1
358K
\lim_{x\to 0} \frac{\sin x}{x} = 1
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5ω² + 6ω + 0 = 0
∫₀^∞ e^(-ψ²) dψ = √π / 2
316K
det| 9 4 ; 1 10 | = 86
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
387K