This transformation can be obtained by applying 3 fundamental operations: Their common feature is that they try to transform the original equations into an equivalent system that is easier to solve. In addition to iterative methods, which we will not talk about here, there are so-called direct methods. Methods of solving systems of linear equations That is, if we modify the input, the system of linear equations to be solved will have a different vector b but the same matrix of coefficients A. The matrix of coefficients A, reflecting the intrinsic characteristics of the system, is independent of the input. Modeling linear systems gives rise to linear equations of the form Ax = b, where b is the input vector and the vector x represents the response of the system. The broad class of linear systems includes structures, elastic solids, heat flows, electromagnetic fields, electrical circuits and much more. But their most natural application in engineering is in the analysis of linear systems.
Linear and algebraic equations can be found in almost all branches of numerical analysis.
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