[GiNaC-list] Algebraic sqrt()

[Timo Schlüßler]

Hello,

is there a way to compute a sqrt() algebraic?
E.g. that sqrt(2) * sqrt(2) gives exact 2 and not 2.0000001 or whatever 
else. Or that sqrt(45) * sqrt(3) gives sqrt(135) and not the rounded value.


thanks in advance,
    timo