rc-js-util/docs/rc-js-util.mat3.setrotationmatrix.md

A collection of TS and C++ utilities to help writing performant and correct applications, achieved through strict typing and (removable) invariant checking.

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[Home](./index.md) &gt; [rc-js-util](./rc-js-util.md) &gt; [Mat3](./rc-js-util.mat3.md) &gt; [setRotationMatrix](./rc-js-util.mat3.setrotationmatrix.md)

## Mat3.setRotationMatrix() method

counter clockwise, in radians

**Signature:**

```typescript
setRotationMatrix(_angle: number): Mat3<TArray>;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

\_angle


</td><td>

number


</td><td>


</td></tr>
</tbody></table>
**Returns:**

[Mat3](./rc-js-util.mat3.md)<!-- -->&lt;TArray&gt;