Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:51Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
168K
det| 3 6 ; 0 4 | = 12
446K
3x² + 3x + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
144K
∫₀^∞ e^(-θ²) dθ = √π / 2
371K
∇²t = 0
det| 9 4 ; 1 10 | = 86
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det| 6 6 ; 5 7 | = 12
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