# Pi

Returns the number 3.14159265358979, the mathematical constant , accurate to 15 digits.

See also ASin, Cos, Sin, and Tan.

### Syntax

    Pi()

### Examples

    <!--- This shows the use of Pi --->
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    <TITLE>
    Pi Example
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    <H3>Pi Example</H3>

    Returns the number
    <CFOUTPUT>
    #NumberFormat(Pi(), `_._______________')#
    </CFOUTPUT>, the
    mathematical constant pi, accurate to 15 digits.

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    </HTML>