31 lines
382 B
Markdown
31 lines
382 B
Markdown
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## `TAU` [esql-tau]
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**Syntax**
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:::{image} ../../../../../images/tau.svg
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:alt: Embedded
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:class: text-center
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:::
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**Parameters**
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**Description**
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Returns the [ratio](https://tauday.com/tau-manifesto) of a circle’s circumference to its radius.
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**Supported types**
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| result |
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| --- |
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| double |
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**Example**
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```esql
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ROW TAU()
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```
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| TAU():double |
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| --- |
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| 6.283185307179586 |
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