11. A computer records the results and prints them into a polar coordinate system. 12. The spherical coordinate system generalises the two-dimensional polar coordinate system. 13. Figure 5 : Luminance and contrast versus viewing direction in a polar coordinate system. 14. Some scientific calculators provide a function to convert from rectangular coordinates to polar coordinates . 15. The Euclidean analogy for this is Cartesian versus polar coordinates . 16. Radially asymmetric systems may also be modeled with polar coordinates . 17. For example, the polar coordinates can be introduced as: 18. In polar coordinates , Laplace's equation is ( see Del in cylindrical and spherical coordinates ): 19. They have their own article, and add only confusion to the article on polar coordinates . 20. Some other example of these never-ending cycles are Particle Physics, Polar coordinate system and Hypsogastropoda.
