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N::meprec warning with Solve

• To: mathgroup at smc.vnet.net
• Subject: [mg86696] N::meprec warning with Solve
• From: Peter Breitfeld <phbrf at t-online.de>
• Date: Wed, 19 Mar 2008 05:21:27 -0500 (EST)

consider the function:

f[x_] := (x^4 + x^3 + x^2 + 5)/(5 x^2 + 5 x + 5)

lsg=Solve[f[x]==0,x]

gives the warnings:

N::meprec:
"Internal precision limit $MaxExtraPrecision = 50.` reached while
evaluating Im[61/(3\(<<1>> <<1>>)^(1/3))+1/3\ (1/2\(<<1>>))^(1/3)]."

How can this happen if no Reals are used? Why is N called?

BTW the results of Solve are correct

Gruss Peter
-- 
==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==-==
Peter Breitfeld, Bad Saulgau, Germany -- http://www.pBreitfeld.de

• Follow-Ups:
  • Re: N::meprec warning with Solve
    • From: Curtis Osterhoudt <cfo@lanl.gov>