64 lines
1.6 KiB
Markdown
64 lines
1.6 KiB
Markdown
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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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# Function ceil
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Round a value towards plus infinity
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If `x` is complex, both real and imaginary part are rounded towards plus infinity.
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For matrices, the function is evaluated element wise.
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## Syntax
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```js
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math.ceil(x)
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math.ceil(x, n)
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```
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### Parameters
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Parameter | Type | Description
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--------- | ---- | -----------
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`x` | number | BigNumber | Fraction | Complex | Array | Matrix | Number to be rounded
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`n` | number | BigNumber | Array | Number of decimals Default value: 0.
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### Returns
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Type | Description
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---- | -----------
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number | BigNumber | Fraction | Complex | Array | Matrix | Rounded value
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### Throws
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Type | Description
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---- | -----------
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## Examples
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```js
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math.ceil(3.2) // returns number 4
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math.ceil(3.8) // returns number 4
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math.ceil(-4.2) // returns number -4
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math.ceil(-4.7) // returns number -4
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math.ceil(3.212, 2) // returns number 3.22
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math.ceil(3.288, 2) // returns number 3.29
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math.ceil(-4.212, 2) // returns number -4.21
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math.ceil(-4.782, 2) // returns number -4.78
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const c = math.complex(3.24, -2.71)
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math.ceil(c) // returns Complex 4 - 2i
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math.ceil(c, 1) // returns Complex 3.3 - 2.7i
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math.ceil([3.2, 3.8, -4.7]) // returns Array [4, 4, -4]
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math.ceil([3.21, 3.82, -4.71], 1) // returns Array [3.3, 3.9, -4.7]
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```
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## See also
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[floor](floor.md),
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[fix](fix.md),
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[round](round.md)
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