User Guide

638 Chapter 3: ColdFusion Functions
Pi
Description
Gets the mathematical constant π, accurate to 15 digits.
Returns
The number 3.14159265358979.
Category
Mathematical functions
Function syntax
Pi()
See also
ASin, Cos, Sin, Tan
Example
<h3>Pi Example</h3>
<!--- By default, ColdFusion displays only 11 significant digits.
Use NumberFormat to display all 15. --->
The Pi function Returns the number
<cfoutput>
#NumberFormat(Pi(), "_._______________")#,
</cfoutput> the mathematical constant pi, accurate to 15 digits.