An illustration of method of finite differences in the solution of Laplace's equation.
European Journal of Physics, 13.
A technique is described which illustrates the method of finite differences in the solution of Laplace's equation for a particular problem. The problem is to locate contours of equal electrical potential for a simple two-tube electrostatic lens. A short basic program which achieves this objective is provided together with sample results. The technique can be applied to many more complex problems.
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