# Matlab and roots

Hi,

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 October 9, 2019, 3:54 pm ad1c9bdddfhttps://brainmass.com/math/linear-programming/matlab-roots-16770

#### 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.

$2.19