Minor and Cofactor
The minor and cofactor of a chosen element of a square matrix, with the solution.
Elements with spaces, rows with semicolons: 1 2; 3 4. Rows and columns are numbered from 1.
This calculator finds the minor and cofactor of a chosen element of a square matrix.
The minor Mij is the determinant of the matrix with row i and column j removed. The cofactor is Aij = (−1)i+j · Mij.
Example. For the matrix 1 2; 3 4 and the element a₁₂ the minor is 3 and the cofactor is −3.
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