About: polar coordinate

Premodifier: polar
Head noun: coordinate

Same concepts
http://dbpedia.org/resource/Polar_coordinate_system

Broader concepts

label	provenance	confidence
conic section	isap:217147676	0.658387
angle	isap:475976636	0.296494
complex number	isap:255560912	0.294657

Narrower concepts

label	provenance	confidence