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Got a trouble with the Limit[]

  • To: mathgroup at smc.vnet.net
  • Subject: [mg22760] Got a trouble with the Limit[]
  • From: "mason" <mhl at tpts1.seed.net.tw>
  • Date: Fri, 24 Mar 2000 03:28:09 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Dear all,
    I had a trouble presenting the limit of a multiple defined function.
    I set    f[n_,x_]:=(1-(1+x)^-n)/x /; x>0&&x<1;
              f[n_,x_]:=0 /; x<=0 || x>=1;
    But I don't know how to show that
    Limit[f[n_,x_], n->Infinity] equals to 1/x, when 0<x<1
    Limit[f[n_,x_], n->Infinity] equals to 0, elsewhere.
Regards
Mason Lee




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