phase plane
preferred label: صفحه فاز @fa
type: Concept
narrower: regular point

singular point
preferred label: نقطه تکین @fa
type: Concept
related: regular point

complex field
preferred label: میدان مختلط @fa
type: Concept
related: regular point

regular point
related: singular point
related: complex field
broader: phase plane
preferred label: نقطه منظم @fa
type: Concept