ISPERPENDICULAR Check orthogonality of two vectors.

   B = isPerpendicular(V1, V2)
   where V1 and V2 are two 1-by-2 row arrays, returns 1 if the vectors are
   perpendicular, and 0 otherwise.

   Also works when V1 and V2 are two N-by-2 arrays with same number of
   rows. In this case, return a N-by-1 array containing 1 at the positions
   of perpendicular vectors.

   Also works when one of V1 or V2 is 1-by-2 and the other one is a N-by-2
   array. In this case the result has size N-by-1.

   B = isPerpendicular(V1, V2, ACCURACY)
   specifies accuracy of numerical tests, default is 1e-14.


   Example
   isPerpendicular([1 2 1], [2 4 2])
   ans =
       1

   isPerpendicular([1 2 1], [1 3 2])
   ans =
       0

   See also
   vectors2d, isParallel, lines2d

Package: matgeom