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Conference rusure::math

Title:Mathematics at DEC
Moderator:RUSURE::EDP
Created:Mon Feb 03 1986
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:2083
Total number of notes:14613

917.0. "Angle Problem" by GLASS::SHIVES () Fri Aug 12 1988 14:31

    	I have a small mathematical problem that I need an answer for
    a customer project and I hope that someone in here can solve it for
    me.
    
    	The problem is this:
    
    		Given: The locations of two points on an x-y coordinate
    plane and an angle in degrees (0-180) and using the two points as the
    radius to a circle.
    
    		What is the x-y coordinate of the point on the circle
    at the indicated angle?
    
    
    
                         ?
                          \
                           \ 
                            \
                             \ 
                          A   \
    		*--------------*
                P1             P2
    
    	Where:  'P1' and 'P2' are the two points and  'A' is the Angle
    in degrees.
    
    
    	I really appreciate this. I have looked in this conference and
    couldn't find an answer and this problem is not my strong suit.
    
    	Thanks again,
    
    	   Mark
    
T.RTitleUserPersonal
Name
DateLines
917.1Here's a startPOOL::HALLYBThe smart money was on GoliathFri Aug 12 1988 15:4930
917.2the center of the circleLISP::DERAMODaniel V. {AITG,LISP,ZFC}:: D'EramoFri Aug 12 1988 21:275
     It wasn't clear to me from .0 where the center of the
     circle was supposed to be.  I asked the author by mail,
     and he said P1, as used in .1.
     
     Dan