# Manuals/calci/MATRIXADJOINT

Jump to navigation
Jump to search

**MATRIXADJOINT (a)**

- is any set of values.

## Description

- This function shows the Adjoint of a given matrix.
- In , is the set of matrix values.
- Adjoint of a matrix is called adjugate, classical adjoint, or adjunct.
- Adjoint of a matrix formed by taking the transpose of the cofactor matrix of a given original Square matrix.
- Adjoint of matrix A is written by .
- The adjugate of A is the transpose of the cofactor matrix C of A, .
- Also adjoint of a matrix is defined by .
- The adjugate of 1x1 matrix is .
- The adjugate of 2x2 matrix is .
- Consider3x3 matrix .
- Its adjugate is the transpose of its cofactor matrix:

## Examples

1. MATRIXADJOINT([4]) = 1

2.MATRIXADJOINT([2,3;7,8])

8 | -3 |

-7 | 2 |

3.MATRIXADJOINT([-6,12,5;3,-2,9;8,3,3])

-33 | -21 | 118 |

63 | -58 | 69 |

24.999999999999996 | 114 | -24 |