Introduction
- This lesson dives deep into how to create a cofactor matrix.
- Cofactor is simply the minor of each element together with its “place sign“.
- The cofactor of an element is denoted by Cij.
- ‘i’ is the row number while ‘j’ is column number.
- Cofactor matrix is the matrix built with all the cofactors of all elements.
- The cofactor matrix is denoted by C.
Calculating the cofactor matrix requires the knowledge of calculating minors. To learn how to calculate minors follow, Minors.
- To learn about cofactor matrices you need to know following things,
- The place sign
- Cofactors
Cofactor matrix is the matrix built with all the cofactors of all elements.