Matrix Commands

Determinant

Determinant[Matrix]: Returns the determinant of the matrix.         
Example: Determinant[{{1, 2}, {3, 4}}] gives you the number a = -2.

Invert

Invert[Matrix]: Inverts the given matrix.        
Example: Invert[{{1, 2}, {3, 4}}] gives you the inverse matrix
{{-2, 1}, {1.5, -0.5}}.

Transpose

Transpose[Matrix]: Transposes the matrix. 
Example: Transpose[{{1, 2}, {3, 4}}] gives you the matrix {{1, 3}, {2, 4}}.



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