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57 lines
1.5 KiB
Markdown
57 lines
1.5 KiB
Markdown
---
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layout: default
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---
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<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->
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<h1 id="function-sin">Function sin <a href="#function-sin" title="Permalink">#</a></h1>
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Calculate the sine of a value.
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To avoid confusion with the matrix sine, this function does not apply
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to matrices.
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<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>
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```js
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math.sin(x)
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```
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<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>
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Parameter | Type | Description
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--------- | ---- | -----------
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`x` | number | BigNumber | Complex | Unit | Function input
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<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>
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Type | Description
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---- | -----------
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number | BigNumber | Complex | Sine of x
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<h3 id="throws">Throws <a href="#throws" title="Permalink">#</a></h3>
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Type | Description
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---- | -----------
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<h2 id="examples">Examples <a href="#examples" title="Permalink">#</a></h2>
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```js
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math.sin(2) // returns number 0.9092974268256813
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math.sin(math.pi / 4) // returns number 0.7071067811865475
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math.sin(math.unit(90, 'deg')) // returns number 1
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math.sin(math.unit(30, 'deg')) // returns number 0.5
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const angle = 0.2
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math.pow(math.sin(angle), 2) + math.pow(math.cos(angle), 2) // returns number ~1
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```
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<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>
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[cos](cos.html),
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[tan](tan.html)
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