PI

Syntax:

PI ( )

Description: Computes the value π to at least 15 significant figures.

Arguments: None.

Return Type and Value: number – The value π accurate to at least 15 significant digits.

[Example:

PI() results in 3.141592654
PI()/2 results in 1.570796327
PI()*(2.5^2) results in 19.63495408

end example]