That's a special calculation done on square matrices - for example, on a 2 x 2 matrix, or on a 3 x 3 matrix. For details, see the Wikipedia article on "Determinant".
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A single math equation does not have a determinant. A system of equations (3x3 , 4x4, etc.) will have a determinant. You can find a determinant of a system by converting the system into a corresponding matrix and finding its determinant.
It means that if you substitute b for a, c for b and a for c the value of the determinant remains unchanged.It means that if you substitute b for a, c for b and a for c the value of the determinant remains unchanged.It means that if you substitute b for a, c for b and a for c the value of the determinant remains unchanged.It means that if you substitute b for a, c for b and a for c the value of the determinant remains unchanged.
Only square matrices have a determinant
The determinant function is only defined for an nxn (i.e. square) matrix. So by definition of the determinant it would not exist for a 2x3 matrix.
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