evalf(RoofOf(Z^6-3*Z^4+3*Z^2+Z-1,index=real) fails to deliver a numerical value.
- I can use fsolve to compute the real roots but I need to replace all the occurences of RootOf by its numerical value in lengthy expressions.
- Also simplify(RoofOf(Z^6-3*Z^4+3*Z^2+Z-1,index=real,RootOf) does not work.
- I read the other posts related but could not find any answer.
Thanks for any help,