L19_A 根軌跡範例 Root Locus problems
L19_B 根軌跡範例2 Root Locus problems (cont.)
L19_C 利用根軌跡法設計控制器 Controller Design Using Root Locus Method
L19_D 利用根軌跡法設計控制器2 Controller Design Using Root Locus Method (cont.)