'''Cylindrical coordinates''' are a way to describe the location of a point in three-dimensional space based on "r", the distance from the origin in the x-y plane, "θ", the angle from the origin in the x-y plane, and z, the distance perpendicular to the x-y plane: (r,θ,z). | '''Cylindrical coordinates''' are a way to describe the location of a point in three-dimensional space based on "r", the distance from the origin in the x-y plane, "θ", the angle from the origin in the x-y plane, and z, the distance perpendicular to the x-y plane: (r,θ,z). |