Program sfroots | Find roots of a complex polynomial. 
[SYNOPSIS]
sfroots < poly.rsf > root.rsf niter=10 tol=1.0e-6 verb=y sort=
[PARAMETERS]
int     | niter | =10 |   | 	number of iterations 
string  | sort | = |   | 	attribute for sorting (phase,amplitude,real,imaginary) 
float   | tol | =1.0e-6 |   | 	tolerance for convergence 
bool    | verb | =y |  [y/n] | 	verbosity flag 
[DIRECTORY]
system/generic
