subst

[Jean-Marc Sac-Epée <jmse@poncelet.univ-metz.fr>]

Hi,

I would like to replace the variable x by x+1/x in a polynomial p.
Under gp, I simply use something like
p=x^5+x+1
subst(p,x,x+1/x)

but in library mode, what is the good synthax? p is a polynomial, but can I use gsubst even if x+1/x is not a polynomial?

JM
 

-- 
Jean-Marc Sac-Epée, Ingénieur de Recherches,    ("\-''-/").___..--''"`-.
Laboratoire de Mathématiques, Université de Metz,(`@_ @  )   `-.  (     ).`-.__.`)
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