roots
Roots of a plynomial.
r=roots(c)
Inputs
c A vector of real or complex numbers.
Outputs
r The vector of roots of the polynomial defined below.


Description
The function returns the solution of the polynomial equation c[1]*x^(n-1)+c[2]*x^(n-2)...+c[n]=0 , where n is the number of elements in c .
Example
>>a=[5 2 3 4]
>>r=roots(a)
>>polyval(a,r)
Scaled by 10^-14
   -0.1776 +  0.0999i   
   -0.4441 -  0.1066i   
         0 -  0.0999i