Chapter 3 System of linear algebraic equation

Topics from linear algebra form the core of numerical analysis. Almost every conceivable problem, be it curve fitting, optimization, simulation of flow sheets or simulation of distributed parameter systems requiring solution of differential equations, require at some stage the solution of a system (often a large system!) of algebraic equations. MATLAB (acronym for MATrix LABoratory) was in fact conceived as a collection of tools to aid in the interactive learning and analysis of linear systems and was derived from a well known core of linear algebra routines written in FORTRAN called LINPACK.