On 12-04-18 4:14 PM, Michael wrote: > Is there a way to find all roots of a polynomial equation? > > Lets say > > x^5+a*x^4+b*x^3+c*x^2+d*x+e=0 > > > how to find its all roots? polyroot() should be able to do it, assuming that a,b,c,d and e are numeric or complex values, not just symbols. Duncan Murdoch