%-----------------------------------------------------------------------
% Use MATLAB's "roots" function to find all the polynomial roots
%    p(x) = a(1)*x^m + ... + a(m)*x + a(m+1)
% Instructor: Nam Sun Wang
%-----------------------------------------------------------------------

% Start fresh ----------------------------------------------------------
      clear all

% Print a header -------------------------------------------------------
      disp('Find the roots of a polynomial with real coefficients.')
      disp('  p(x) = a(1)*x^m + ... + a(m)*x + a(m+1)             ')

% Input coefficients ---------------------------------------------------
      coefficient = input ('Please enter coeffcients in a vector form: ');

% Call a routine to solve the problem ----------------------------------
      answer = roots(coefficient);

% output your answer ---------------------------------------------------
      disp ('The roots are ...');
      disp (answer);