Information

Minor companion


We call it minor minor relative to an element Theij of an array M, square and of order n> 1, the determinant MCij , of order n - 1, associated with the matrix obtained from M when we suppress the row and column that go through Theij . Let's see how to determine it by the following examples:

a) Given the matrix , order 2, to determine the smallest complement relative to the element The11(MC11), we removed row 1 and column 1:

Similarly, the smallest complement relative to the element to be12 é:

b) Being , of order 3, we have:

Next: Cofator