unit vector
preferred label: بردار واحد @fa
type: Concept
related: unit tangent vector

unit tangent vector
related: unit vector
related: derivative
broader: tangent vector
preferred label: بردار مماس واحد @fa
type: Concept

derivative
preferred label: مشتق @fa
type: Concept
related: unit tangent vector

tangent vector
preferred label: بردار مماس @fa
type: Concept
narrower: unit tangent vector