Round a number to the nearest >= integer.

```
ceil(
```*2.1*)

num | The input. |

return value | The nearest, but greater or equal integer to the input. |

The argument can be a real or complex number or a matrix. In case of complex numbers, the real and imaginary parts are handled separately. In case of matrices, the computation is elementwise.

Quantities are not suppored by this function.

```
ceil(
```*2*)