This paper discusses the application of numerical methods namely Gauss Elimination Method, Method, Cramer, Matrix Inversion Method and Gauss-Jordan elimination method. Cases on an electric circuit is formed into a mathematical model to the next is formulated numerically by using the four methods. This calculation uses the tools Matlab (Matrix Laboratory) which allows it to handle the mathematical calculations in an easy way.Keywords: Matrix, Gauss Elimination Method, Electric Circuit
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