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# Determinant of a matrix

This online calculator computes determinant of a matrix, using it's definition This content is licensed under Creative Commons Attribution/Share-Alike License 3.0 (Unported). That means you may freely redistribute or modify this content under the same license conditions and must attribute the original author by placing a hyperlink from your site to this work https://planetcalc.com/1104/. Also, please do not modify any references to the original work (if any) contained in this content.

The site engine now allows input of long texts, so this is first calculator to use this feature, and it is used to enter matrix, and calculator computes the determinant of entered matrix.

It uses determinant definition, which is recursive calculation, and, in theory, quite resource consuming, but for our case, with matrix, entered manually, I believe it is enough (if not, please use Determinant by Gaussian elimination).

Some notes about determinant are below the calculator, for those who forgot. #### Determinant of a matrix

Digits after the decimal point: 2
Determinant of a matrix

Some recursive formulae:

• determinant of a matrix 1x1

• determinant of a matrix 2x2

• determinant of a matrix nxn, where n > 2
- minor of .
Minor of - is the determinant of a (n–1) × (n–1) matrix that results from deleting the 1-th row and the j-th column of A. That's why this is recursive definition.

For example, here is the determinant of a matrix 3x3