πPEARL MATHSPEARL INSTITUTE BATALA
← All classes2 original learning entries

Matrices Formulas & Calculators

Understand matrices formulas with explanations, examples and interactive tools.

Matrices

2 by 2 Determinant

\(\det(A)=ad-bc\)

Determinant of matrix [[a,b],[c,d]].

Open calculator →Matrices

2 by 2 Matrix Inverse

\(A^{-1}=\frac1{ad-bc}\begin{bmatrix}d&-b\\-c&a\end{bmatrix}\)

Inverse exists when determinant is not zero.

Learn formula →