solving origin of a vectors

Posted by Mike on Stack Overflow See other posts from Stack Overflow or by Mike
Published on 2010-04-02T08:20:46Z Indexed on 2010/04/02 8:23 UTC
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I have two endpoints (xa,ya) and (xb,yb) of two vectors, respectively a and b, originating from a same point (xo, yo). Also, I know that |a|=|b|+s, where s is a constant. I tried to compute the origin (xo, yo) but seem to fail at some point. How to solve this?

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