Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:03Z
∑_{k=1}^{n} k = n(n+1)/2
∫₀^∞ e^(-r²) dr = √π / 2
168K
det| 1 4 ; 0 2 | = 2
446K
3x² + 3x + 6 = 0
det| 9 6 ; 7 10 | = 48
144K
det| 2 7 ; 7 3 | = -43
371K
∇²t = 0
7z² + 2z + 0 = 0
det| 1 4 ; 3 2 | = -10
234K
det| 4 2 ; 5 5 | = 10
2H₂ + O₂ → 2H₂O
det| 9 4 ; 1 10 | = 86
70K
\lim_{x\to 0} \frac{\sin x}{x} = 1