what is connected region ?
A region is said to be connected region if any two points of region D can be connected by a curve which lies completely within the region. It is of two types (i) Simply connected region (ii) multi connected region (i)Simply connected region A connected region is said to be a Simply connected if all the interior points of a closed curve C drawn in the region D are the points of the region D. e.g (ii) multi connected region A domain or range which is not simply connected is called multi connected region. e.g