50 lines
		
	
	
		
			72 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			50 lines
		
	
	
		
			72 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
---
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title: "acos"
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excerpt: "Compute the arccosine of a number (in radians)."
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layout: manual
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---
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Compute the arccosine of a number (in radians).
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```js
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acos(num: number) -> number
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```
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### Tags
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* `math`
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### Arguments
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| Name | Type | Description | Required |
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|----------|------|-------------|----------|
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| `num` | `number` |  | Yes |
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### Returns
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`number` 
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### Examples
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```js
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sketch001 = startSketchOn('XZ')
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  |> startProfileAt([0, 0], %)
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  |> angledLine({
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       angle = toDegrees(acos(0.5)),
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       length = 10
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     }, %)
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  |> line([5, 0], %)
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  |> lineTo([12, 0], %)
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  |> close(%)
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extrude001 = extrude(5, sketch001)
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```
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