polar coordinates

Radius and angle

Polar coordinates locate a point by its distance from a central origin and the angle from a reference direction, rather than by horizontal and vertical distances as in Cartesian coordinates.

The system suits problems involving rotation or radial symmetry: Convert the equation to polar coordinates.

A point written as (r, θ) gives the radius and angle.

Related

mathematics · curve · angle · rose · complex plane · complex numbers · unit circle · circular motion · Euler's formula · r · arc length · spherical · theta · law of cosines · rotation · origin · reference point · spiral

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coordinate system type

polar coordinatesCartesian coordinates

Perpendicular-axis position notation

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pole, polar, coordinate, polarization, coordinates, polarity, polarizing, bipolar, polarize

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