46 lines
76 KiB
Markdown
46 lines
76 KiB
Markdown
---
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title: "atan"
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excerpt: "Compute the arctangent of a number (in radians)."
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layout: manual
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---
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Compute the arctangent of a number (in radians).
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Consider using `atan2()` instead for the true inverse of tangent.
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```js
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atan(input: 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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| `input` | [`number`](/docs/kcl/types/number) | The number to compute arctangent of. | Yes |
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### Returns
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[`number`](/docs/kcl/types/number)
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### Examples
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```js
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sketch001 = startSketchOn(XZ)
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|> startProfile(at = [0, 0])
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|> angledLine(angle = units::toDegrees(atan(1.25)), length = 20)
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|> yLine(endAbsolute = 0)
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|> close()
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extrude001 = extrude(sketch001, length = 5)
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```
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