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Spherical Coordinates (robphy)

This visualizes some important aspects of spherical coordinates, that I would use when teaching physics majors. Techniques for some of these constructions were inspired by https://www.geogebra.org/m/W7tDfJP5 Constant surfaces in cartesian, cylindrical, and spherical coordinate systems by Serdar OKUYUCU and https://www.geogebra.org/m/NQwe7K89 Electric Field for Multiple Point Charges in 3-D by Dave Nero