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46 lines
895 B
Markdown
46 lines
895 B
Markdown
# Function not
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Logical `not`. Flips boolean value of a given parameter.
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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.not(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 | Unit | Array | Matrix | null | First value to check
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### Returns
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Type | Description
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---- | -----------
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Boolean | Array | Matrix | Returns true when input is a zero or empty value.
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## Examples
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```js
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math.not(2); // returns false
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math.not(0); // returns true
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math.not(true); // returns false
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a = [2, -7, 0];
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math.not(a); // returns [false, false, true]
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```
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## See also
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[and](and.md),
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[or](or.md),
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[xor](xor.md)
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