Sprott–Linz Case J — dx/dt = a·z, dy/dt = −a·y+z, dz/dt = −x+y. Classic chaotic a=2 (Sprott 1994). Distinct from Case I (−a·y, x+z, x+y²−a·z), Case H (−y+z², x+a·y, x−b·z), Case G (a·x+b·z, xz−y, −x+y), Case F (y+z, −x+a·y, x²−b·z), Case E (yz, x²−y, 1−a·x), Case D/C/B/A, and Lorenz-84. RK4, not sprott-linz-i.html, not sprott-linz-h.html, not sprott-linz-g.html, not sprott-linz-f.html, 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.