satisfactory accuracy, and therefore digital computation is necessary. The method is now illus-A numerical method for the computation of trated with suitable examples chosen for the comelectrostatic fields is described. The basis of putation of electrostatic fields with one or more the method is the use of fictitious line charges dielectrics. as particular solutions of Laplace's and Poisson's equations. Details are given of a digital computer BASIC PRINCIPLE program developed for field calculations by means of this method, and its application is illustrated For the calculation of electrostatic fields, by practical examples involving twoand threethe distributed charge on the surface of conducdimensional geometries. tors is replaced by n line charges arranged inside the conductors. In order to determine the magni-T 74 085-7, recommended and approved by the IEEE Transmission & Distribution Committee of the IEEE Power Engineering Society for presentation at Tedsrtsto fsraecagsb n

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