On Mon, 3 Nov 2008, Martin Rubey wrote:
Alejandro Jakubi <[EMAIL PROTECTED]> writes:
Now, my next question is about selecting the two real roots out of the four
produced by 'radicalSolve' here:
f:=(x^3+x^2-4*x-4)/(2*x^2+7*x-4)
fp:=differentiate(f,x)
radicalSolve(fp,x)
The problem is that
allRootsOf(fp)$RealClosure(Fraction Integer)
try
allRootsOf(numer fp)$RealClosure(Fraction Integer)
Fine. Now, how I recover the algebraic expressions, as produced by
'radicalSolve', associated with such labels like %A1, %A2 ?
Alejandro Jakubi
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