# Determinant of 3x3 matrices

This calculator calculates the determinant of 3x3 matrices

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#### Michele

Created: 2011-06-16 20:59:19, Last updated: 2020-12-11 13:51:36

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The determinant is a value defined for a square matrix. It is essential when a matrix is used to solve a system of linear equations (for example Solution of a system of 3 linear equations).

The determinant of 3x3 matrix is defined as
$\left|\begin{matrix} a & b & c \\ d & e & f \\ g & h & i \end{matrix} \right| = aei - afh - bdi + bfg + cdh - ceg$

#### Determinant of 3x3 matrices

Digits after the decimal point: 2
Determinant

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PLANETCALC, Determinant of 3x3 matrices