38 lines
756 B
Markdown
38 lines
756 B
Markdown
---
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title: math.isInf() function
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description: The math.isInf() function reports whether `f` is an infinity, according to `sign`.
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menu:
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v2_0_ref:
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name: math.isInf
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parent: Math
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weight: 301
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---
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The `math.isInf()` function reports whether `f` is an infinity, according to sign.
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_**Output data type:** Boolean_
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- If `sign > 0`, `math.isInf` reports whether `f` is positive infinity.
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- If `sign < 0`, `math.isInf` reports whether `f` is negative infinity.
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- If `sign == 0`, `math.isInf` reports whether `f` is either infinity.
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```js
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import "math"
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math.isInf(f: 2.12, sign: 3)
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// Returns false
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```
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## Parameters
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### f
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The value used in the evaluation.
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_**Data type:** Float_
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### sign
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The sign used in the evaluation.
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_**Data type:** Integer_
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