# speye

Sparse identity matrix creation.

## Syntax

s = speye(m)

s = speye(m, n)

s = speye(dim)

## Inputs

`m`- The number of rows.
`n`- The number of columns. Default:
`m`. `dim`- A two-element vector containing the dimensions.

## Outputs

- s
- The sparse identity matrix.

## Example

`speye(4,6)`

```
ans = sparse [4 x 6], nnz = 4
[1,1] 1
[2,2] 1
[3,3] 1
[4,4] 1
```