The dir changed since 2.0.

Generate a 4x4 transformation matrix which can pass into `multmatrix`

to scale its child elements using the specified vector.

**Since:** 1.1

## Parameters

`v`

: Elements will be scaled using the vector.

## Examples

```
include <matrix/m_scaling.scad>;
cube(10);
translate([15, 0, 0])
multmatrix(m_scaling([0.5, 1, 2]))
cube(10);
```