What is the preferred way to convert the results of solve(z^3+b*z^2+c*z+d,z), where b,c,d are complex floating point numbers, and z is a complex variable, into floating point?
numer doesn't always do it.
expand doesn't always do it.
rectform doesn't always do it.
radcan doesn't do it.
I keep getting expt(...) forms in my display that I can't always get rid of.
These are all _constant_ numerical numbers, so there ought to be a way to force numerical evaluation.