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How to find the equidistance curves of a curve defined by Interpolation function?

• To: mathgroup at smc.vnet.net
• Subject: [mg27863] How to find the equidistance curves of a curve defined by Interpolation function?
• From: liwen liwen <gzgear at yahoo.com>
• Date: Thu, 22 Mar 2001 04:30:04 -0500 (EST)
• Sender: owner-wri-mathgroup at wolfram.com

Dear friends,

How are you!  I want to know how to find the
equidistance curves of a curve defined by
Interpolation function, for example, 
when the equidistance is 2, the equidistance curve of
a circle with a radium of 5 is a circle with a radium
of 3, now I want to 
find the equidistance curves of an Interpolation curve
defined by the following data:

data1={{0,0},{1,1},{2,3},{5,8},{7,12}};
cur=Interpolation[data1];

The equidistance curves of the curve defined above has
two curves. How can I find them?


Thank you very much!

Liwen  3/21/2001

e-mail:  gzgear at yahoo.com

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  • Re: How to find the equidistance curves of a curve defined by Interpolation function?
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