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This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

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$ZPI (ObjectScript)

Contains the value of pi.

Synopsis

$ZPI  

Description

$ZPI contains the value of the numeric constant Pi to eighteen decimal places (3.141592653589793238).

This value is frequently used with trigonometric functions, such as the sine function $ZSIN.

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