Assertion: polar coordinate | /r/HasAspect | same origin
Facets:
value: in the plane
type: LOCATION
Source sentences:
text: For example, in the plane, if Cartesian coordinates (x, y) and polar coordinates (r, θ) have the same origin, and the polar axis is the positive x axis, then the coordinate transformation from polar to Cartesian coordinates is given by x = r cosθ and y = r sinθ.