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how can I extract the coefficients in matlab of polynomials?
the problem is the next one.
syms x u;
A=5*x^5*u^3 + 4*x^4*u^2 +3*u;
I need the coefficients. Is there a function that extracts the coefficients.
2 Answers
- 1 decade agoFavorite Answer
I cant think of a short way, buy if you really want to you could convert the sym function to a string using char(symFunction)
then use a series of string searches to find the correct coeff.
- Anonymous5 years ago
the easy way is to do polyfit. use help or doc to find how it works another option: u can make a least squares algoritm to do it.... it should be less than 15-20 lines....
