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MathGroup Archive 2001

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definition of function with several varyables?????

  • To: mathgroup at smc.vnet.net
  • Subject: [mg30064] definition of function with several varyables?????
  • From: "Alexei Kharine" <A.Kharine at tn.utwente.nl>
  • Date: Thu, 26 Jul 2001 01:20:01 -0400 (EDT)
  • Organization: University of Twente, Enschede, The Netherlands
  • Sender: owner-wri-mathgroup at wolfram.com

Dear.....
could you help me with solving of one problem which seems to be very easy,
but I could not find answer.

 r[x_,y_,xs_,ys_,zs]:=((x-xs)^2+(y-ys)^2+zs^2)^0.5;
Print["r="," ",N[r[0,0,0,0,2]]];

after calculation:
out[]= r = r[0.,0.,0.,0.,2.]

where is error???
and how to get numerical answer??




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