Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 22:47Z
det| 5 1 ; 4 6 | = 26
∫₀^∞ e^(-ψ²) dψ = √π / 2
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∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
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12φ² + 4φ + 4 = 0
det| 7 4 ; 4 8 | = 40
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det| 5 6 ; 2 6 | = 18
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det| 4 2 ; 6 5 | = 8
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