21. See spherical coordinates and cylindrical coordinates. 22. The above is found by computing the following double integral using the unit surface element in spherical coordinates : 23. In polar coordinates, Laplace's equation is ( see Del in cylindrical and spherical coordinates ): 24. I was mucking around with spherical coordinates , but it seems this would be the better approach ). 25. Let ?, ?, and ? be spherical coordinates for the source point " P ". 26. The current produces a voltage across a shunt resistance, which is resolved to spherical coordinates by a microprocessor. 27. It is convenient to use spherical coordinates , and the wavefunction can be separated into functions of each coordinate, 28. Curvilinear coordinate systems, such as cylindrical or spherical coordinates , are often used in physical and geometric problems. 29. Within a spherically symmetric mass distribution, it is possible to solve Poisson's equation in spherical coordinates . 30. :In spherical coordinate systems mathematicians traditionally use & theta; for elevation and & phi; for azimuth.
