Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:50Z
∑_{k=1}^{n} k = n(n+1)/2
3x² + 3x + 6 = 0
∫₀^∞ e^(-ω²) dω = √π / 2
144K
∇²t = 0
7z² + 2z + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
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det| 4 2 ; 5 5 | = 10
det| 2 8 ; 7 3 | = -50
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det| 9 4 ; 1 10 | = 86
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