# Manuals/calci/IM

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**IM(n)**

**MATRIXIDENTITY(n)**

- is the order of the matrix.

## Description

- This function shows the identity matrix of a given matrix.
- In , is the Order of identity matrix.
- Identity matrix is also called Unit matrix.
- Identity matrix of size n is the nxn square matrix with ones on the main diagonal and zeros on the other entries.
- Identity matrix is denoted by .
- ,

, ......

## Examples

1.IM(3)

1 | 0 | 0 |

0 | 1 | 0 |

0 | 0 | 1 |

2. IM(5)

1 | 0 | 0 | 0 | 0 |

0 | 1 | 0 | 0 | 0 |

0 | 0 | 1 | 0 | 0 |

0 | 0 | 0 | 1 | 0 |

0 | 0 | 0 | 0 | 1 |

## Related Videos

## See Also

## References