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    Re: Snellius Construction questions
    From: Herbert Prinz
    Date: 2009 Jan 06, 11:05 -0500

    First I must apologize to the list and to George Huxtable in particular.
    I do not know what was so offensive in his last message that caused my
    internet provider's spam filter to insert the SPAM warning into the
    subject line. I did not catch that in time when replying. It probably
    broke the thread?
    
    
    Richard B. Langley wrote:
    
    >Quoting Herbert Prinz :
    >
    >
    >
    >>It's a classical surveying technique, in German called
    >>"rueckwaerts-einschneiden". The English  name is  "recession for two
    >>points" (I wish you good luck googling this phrase - particularly in
    >>times like our's.)
    >>
    >>
    >
    >Perhaps you mean "resection"?
    >
    >
    
    Thank you, Richard. That's exactly what I mean. I got thrown off by Dirk
    J. Struik's article on Snel in the DSB, Vol. 12, p.499. "The Doctrina,
    which comprise a plane and spherical trigonometry, includes the
    recession [sic] problem for two points [...]".
    
    No wonder I got strange results from Google. When searching for
    "recession AND surveying" I hit a page with survival strategies for
    surveyors, giving advice how to stay in business during an economic
    recession.
    
    Herbert Prinz
    
    
    
    
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