Bjorn Jonsson <bjj### [at] zzzmmediais> wrote:
: (1) Given two circles, find the four lines that are tangential two both 
: circles and the points where they 'touch' the circles.

: (2) Given two lines through three points (you can think of this as two 
: out of three sides on a triangle), determine the center and radius of a 
: circle which 'touches' one of the lines at a point with a known distance 
: from the point common to the two lines.

  Both of those are perfectly possible with povray itself.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

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