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    Matlab and roots

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    I need help in using Matlab to build an m file for
    solving non-linear equations using the Newton-Raphson
    method (or another recommended method.) I need a clear
    explanation of the process of creating an m file, and
    also using it to find the roots of the following two
    equations as examples:

    1) f(x) = exp(-x) - sin((pi/2)*x)

    2) x^5 - 17*x^4 + 124*x^3 - 508*x^2 + 1035*x - 875 = 0

    The method must also find complex roots if they exist.

    © BrainMass Inc. brainmass.com March 4, 2021, 5:53 pm ad1c9bdddf

    Solution Preview

    Open MatLab !
    Now click File - New - M-file and click
    A new window opens. Give a new name and save it to your fav directory.
    Now we can give the commands.
    Always try to begin by the commands ...

    Solution Summary

    This shows how to use Matlab to find roots, including complex roots.