Explain circular permutation with the help of an example.
Circular Permutation – Consider an arrangement of 4 objects, a,b,c,d as in Fig. 1. We observe the objects in the clockwise direction. On the circumference there is no preferred origin, and hence the permutations abcd, bcda, cdab, dabc will look exactly alike. So, each linear
Basic Combinatorics
a
d• •
d • •b c • • a
• c •b