Not exactly. Even if you disregard the definition arguments discussed below, and allow the definition of "line segment" to include "point" I would not say that a point is a zero length line segment.
It seems to me that the "lenght" of a point, if such a concept is to be allowed, is infinitely small but not zero. Thus, a point has length of lim(x->0) x.
To me, a zero length line segment would be nothingness.
But putting the math aside, in the context of patent law, it is important to follow the commonly accepted definitions. A person should not be able to change the meaning of his claims by suggesting new definitions. And it seems obvious that, as others have pointed out, the accepted definition of a line segment is something with finite length, and the accepted definition of a swipe is something that (obviously) results from swiping, i.e. some movement of the finger.
It seems to me that the "lenght" of a point, if such a concept is to be allowed, is infinitely small but not zero. Thus, a point has length of lim(x->0) x.
To me, a zero length line segment would be nothingness.
But putting the math aside, in the context of patent law, it is important to follow the commonly accepted definitions. A person should not be able to change the meaning of his claims by suggesting new definitions. And it seems obvious that, as others have pointed out, the accepted definition of a line segment is something with finite length, and the accepted definition of a swipe is something that (obviously) results from swiping, i.e. some movement of the finger.