Find the matrix of cofactors and the determinant for a 2x2 or 3x3 matrix.
Matrix cell inputs must be valid numbers, including decimals and negatives.
A cofactor matrix replaces each entry with its signed minor. It is commonly used to compute the adjugate and the inverse of a matrix.
Switch between 2x2 and 3x3 matrices.
Invalid entries are rejected instead of being converted to zero.
The result panel shows the determinant and the cofactor matrix.
Matrix [[2, 3], [1, 4]]
Cofactor matrix = [[4, -1], [-3, 2]]
det(A) = 5
A cofactor is a minor multiplied by a sign determined by its position.
Yes. Decimal and negative values are accepted.
The adjugate matrix is the transpose of the cofactor matrix, and it appears in the inverse formula.
No. Cofactors are only defined for square matrices.
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