# ee.Array.identity

Creates a 2D identity matrix of the given size.

<br />

| Usage | Returns |
|---|---|
| `ee.Array.identity(size)` | Array |

| Argument | Type | Details |
|---|---|---|
| `size` | Integer | The length of each axis. |

## Examples

### Code Editor (JavaScript)

```javascript
// []
print(ee.Array.identity(0));

// [[1]]
print(ee.Array.identity(1));

// [[1,0],
//  [0,1]]
print(ee.Array.identity(2));

// [[1,0,0],
//  [0,1,0],
//  [0,0,1]]
print(ee.Array.identity(3));
```
Python setup

See the [Python Environment](https://developers.google.com/earth-engine/guides/python_install) page for information on the Python API and using
`geemap` for interactive development.

```python
import ee
import geemap.core as geemap
```

### Colab (Python)

```python
# []
display(ee.Array.identity(0))

# [[1]]
display(ee.Array.identity(1))

# [[1, 0],
#  [0, 1]]
display(ee.Array.identity(2))

# [[1, 0, 0],
#  [0, 1, 0],
#  [0, 0, 1]]
display(ee.Array.identity(3))
```