|Definition:|| for a network containing l directed loops and b branches, and in which a reference direction is chosen for each branch, matrix of type l × b where the element aij is:
NOTE – The figure gives a network and the corresponding branch-mesh incidence matrix when both loops 1 and 2 are directed anticlockwise.
- 0 if branch j is not in loop i
- 1 if branch j is in loop i with the same direction
- −1 if branch j is in loop i with opposite direction