Incidence matrix:- this incidence matrix is mathematical modal of present given n/w will the all information available . The information regarding n/w is which branch are incident at which node. And what are the orientation relative to the node for a graph. If their are n node and we branches the complete incidence matrix (Aa=ahk) is rectangular matrix of order n cross b.The standerd convention are as follows .
                                                   [ahk=1]

  • If branch k is associated with node h and oriented away from node h.

                                                   [ahk=-1]

  • If branch k is associated with node h and oriented towards from node h.

                                                   [ahk=0]

  • If branch k is not associated with node.

Problem:-Consider the following n/w and its oriented graph is as follows?


"In complete matrix the sum of element it any colum is zero..."