Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:33Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
384K
∫₀^∞ e^(-t²) dt = √π / 2
385K
det| 11 9 ; 4 12 | = 96
det| 7 9 ; 1 8 | = 47
259K
∇ × E = −∂B/∂t
5z² + 5z + 0 = 0
det| 7 4 ; 4 8 | = 40
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det| 6 6 ; 3 7 | = 24
∑_{k=1}^{n} k = n(n+1)/2
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∫₀^∞ e^(-x²) dx = √π / 2
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