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Can any one solve this using matlab??
develop a matlab code to find all roots of a polynomial with order n
n=3
n=4
n= any n
Thank you very much Jack, I really appreciate it, I own u a favor man, but can u please send it to me by code
2 Answers
- 1 decade agoFavorite Answer
Here is an example:
Use the MATLAB function ROOTS
If the nonlinear algebraic system is a polynomial equation, we could use the MATLAB routine roots to find the zeros of the polynomial.
Consider the function
f(x) = x3 - 5x2 -x +2
The user must create a vector of the coefficients of the polynomial, in descending order,
p = [1 5 -1 2]:
Then the user can type the following command
roots(p)
and MATLAB returns the roots
ans =
5.1190
-0.6874
0.5684
** Confirm that x = 0.5684 is a root by typing f(0.5864).
- 5 years ago
A hundred thanks to both of you, smci and Dragan K, for really following up on this problem. it started out to be an idle speculation about the locus of P as k varies and I quite naturally assumed that it'd smoothly travel to point B, and I was going to suggest a puzzle based on that. I was disappointed in finding out that the locus ends abruptly instead, jumping to B. I'm not sure if I can figure out a more graphical way to illustrate this.
