MATLAB Examples

Solve a nonlinear vector equation

In this example a nonlinear vector equation is solved for various values of the Newton-Raphson algorithm parameters. The vector equation to be solved is comprised from 2 nonlinear equations, and the unknown vector comprises from 2 scalars.

Define function handle f

f = @fun;

Solve the equation fun(x)=[1;1], with initial point [4;6]:

[xk1,k1] = linesearch(f,[1;1],[4;6],4,1e-5,1000)
xk1 =

    5.0000
    5.0000


k1 =

     6

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Copyright (c) 2016 by George Papazafeiropoulos
Captain, Infrastructure Engineer, Hellenic Air Force
Civil Engineer, M.Sc., Ph.D. candidate, NTUA
Email: gpapazafeiropoulos@yahoo.gr
Website: http://users.ntua.gr/gpapazaf/