finding root of any polynomail using Newton Raphson method

finding root of any polynomial using Newton Raphson method

Description

*copy the file to your current directory.

Example-
If you want to find a root of
f(x)=6x^3+8x^2-3x^1+78,
write the command-

find_root([78 -3 8 6]);

on MATLAB command window.

*If you want to find another root, change the 100 in,
x=100; (4th line of find_root.m file) to another value as your preference and
rerun
find_root([78 -3 8 6]); command.

*for further details about the algorithm used to calculate
roots. refer

http://en.wikipedia.org/wiki/Newton%27s_method

• MATLAB release: MATLAB 7 (R14)

[misha]

hello there,
i need help in the following topic
write a matlab program for using the newton raphson method
Xk+1 = xk – f(xk)/f’(xk)
for finding the 1 root of the general polynomial
f(x) = a1 + a2x + a3x2 +...+ an-1xn-2 + anxn-1 + an+1xn