Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:39Z
∑_{k=1}^{n} k = n(n+1)/2
det| 5 2 ; 3 6 | = 24
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\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
∫₀^∞ e^(-ψ²) dψ = √π / 2
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3φ² + 4φ + 2 = 0
5ω² + 6ω + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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