* Add documentation to modules, and some constants and types Signed-off-by: Nick Cameron <nrc@ncameron.org> * Improve the language reference Signed-off-by: Nick Cameron <nrc@ncameron.org> --------- Signed-off-by: Nick Cameron <nrc@ncameron.org>
		
			
				
	
	
		
			45 lines
		
	
	
		
			84 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			45 lines
		
	
	
		
			84 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
---
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title: "tan"
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subtitle: "Function in std::math"
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excerpt: "Compute the tangent of a number."
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layout: manual
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---
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Compute the tangent of a number.
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```kcl
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tan(@num: number(Angle)): number(_)
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```
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### Arguments
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| Name | Type | Description | Required |
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|----------|------|-------------|----------|
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| `num` | [`number(Angle)`](/docs/kcl-std/types/std-types-number) | A number. | Yes |
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### Returns
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[`number(_)`](/docs/kcl-std/types/std-types-number) - A number.
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### Examples
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```kcl
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exampleSketch = startSketchOn(XZ)
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  |> startProfile(at = [0, 0])
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  |> angledLine(
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    angle = 50,
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    length = 50 * tan((1/2): number(rad)),
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  )
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  |> yLine(endAbsolute = 0)
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  |> close()
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example = extrude(exampleSketch, length = 5)
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```
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