Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:53Z
∑_{k=1}^{n} k = n(n+1)/2
det| 10 3 ; 4 11 | = 98
168K
3x² + 3x + 6 = 0
det| 5 6 ; 2 6 | = 18
144K
det| 7 4 ; 4 8 | = 40
371K
∇²t = 0
7z² + 2z + 0 = 0
∫₀^∞ e^(-n²) dn = √π / 2
234K
det| 7 7 ; 4 8 | = 28
218K
∑_{k=1}^{n} k = n(n+1)/2
70K