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50 lines
1.1 KiB
Markdown
50 lines
1.1 KiB
Markdown
# 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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```
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### Parameters
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Parameter | Type | Description
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--------- | ---- | -----------
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`x` | Number | BigNumber | Boolean | Complex | Array | Matrix | null | Number to be rounded
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### Returns
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Type | Description
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---- | -----------
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Number | BigNumber | Complex | Array | Matrix | Rounded value
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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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var c = math.complex(3.2, -2.7);
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math.ceil(c); // returns Complex 4 - 2i
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math.ceil([3.2, 3.8, -4.7]); // returns Array [4, 4, -4]
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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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