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Topic: Common Tangent Construction


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Subject:   RE: Common Tangent Construction
Author: Mathman
Date: May 8 2006
On May  8 2006, Alan Cooper wrote:
[top-posting]

Marvellous! I love such neat, intuitive methods; neater than my own, I think.  I
don't have the ways and means to do applets, so will send a descriptive solution
of my approach a little later today [chores to finish first.]  I'd send the PDF
if there was some means of doing that. Your applet shows one thing absolutely:
The right tools in the right hands do a wonderful job.  Any objections I have
occur when such things are taken to extreme.

Thanks.

David.
 
>I thought it would be
> interesting to give a dynamic illustration of the construction that
> (I presume) you had in mind.

The result is at
> http://www.langara.bc.ca/~acooper/mathlets/CommonTan

(This is not
> intended to replace the use of concrete drawing tools, but rather
> just to make it possible for the student to see how the construction
> works in a greater range of cases than it woud be possible to deal
> with by hand.)

Alan
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