Sprott–Linz Case F — dx/dt = y+z, dy/dt = −x+a·y, dz/dt = x²−b·z. Classic chaotic a=0.5 b=1. Distinct from Case E (yz, x²−y, 1−a·x), Case D (−y, x+z, xz+a·y²), Case C (yz, x−y, α−x²), Case B (yz, x−y, α−xy), Case A (y, −x+y·z, a−y²), and Lorenz-84. RK4, not sprott-linz-e.html, not sprott-linz-d.html, not sprott-linz-c.html, not sprott-linz-b.html, not sprott-linz-a.html, not sprott.html, not Lorenz-84, not Finance, not Bouali, not Genesio–Tesi, not Arnéodo, not Newton–Leipnik, not Rabinovich–Fabrikant, not Nosé–Hoover, not Rucklidge, not Wang–Sun, not Lü, not Chen, not four-wing Qi, not Dadras, not Halvorsen, not Chua, not Aizawa, not Thomas, not Rössler, not Lorenz butterfly, not Newton basins. Gold low-alpha trail, cap 650. RM = settled silhouette, no animate-on.